Dekalb, Illinois Weather Conditions

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Current Conditions

  • 13°
  • Clear
  • Wind: South 5 mph
  • Humidity: 92%
  • Visibility: 7.0 miles
  • Dew Point: 11°
  • Pressure: 30.15 in. 0
  • Heat Index: 5

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Next 12 Hours

6  pm
9  pm
12  am
3  am
6  am
Partly Cloudy
Partly Cloudy
Clear
Clear
Partly Cloudy
Partly Cloudy
Fog
Fog
Mostly Cloudy
Mostly Cloudy
23°
21°
19°
18°
18°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of Snow
  • High: 30 °
  • Low: 19 °
  • Chance of Snow
  • Thursday
  • Partly Cloudy
  • High: 25 °
  • Low: 14 °
  • Partly Cloudy
  • Friday
  • Mostly Cloudy
  • High: 34 °
  • Low: 28 °
  • Mostly Cloudy
  • Saturday
  • Overcast
  • High: 46 °
  • Low: 28 °
  • Overcast
  • Sunday
  • Overcast
  • High: 34 °
  • Low: 23 °
  • Overcast

Forecast for Dekalb, Illinois

Updated: 3:00 PM CST on November 25, 2014

  • Tuesday

    Overcast in the morning, then mostly cloudy. High of 27F with a windchill as low as 9F. Winds from the West at 5 to 15 mph.

  • Tuesday Night

    Partly cloudy. Fog overnight. Low of 18F. Winds from the SSW at 5 to 10 mph.

  • Wednesday

    Mostly cloudy in the morning, then overcast. Fog early. High of 30F with a windchill as low as 14F. Winds from the ESE at 5 to 10 mph. Chance of snow 20%.

  • Wednesday Night

    Overcast with a chance of snow. Low of 19F. Winds from the NNE at 5 to 10 mph shifting to the NW after midnight. Chance of snow 20%.

  • Thursday

    Overcast in the morning, then partly cloudy. High of 25F with a windchill as low as 7F. Winds from the NW at 10 to 15 mph.

  • Thursday Night

    Partly cloudy in the evening, then overcast. Low of 14F. Winds from the NW at 5 to 10 mph shifting to the SSW after midnight.

  • Friday

    Mostly cloudy in the morning, then overcast. High of 34F with a windchill as low as 7F. Breezy. Winds from the South at 15 to 20 mph.

  • Friday Night

    Mostly cloudy in the evening, then overcast. Fog overnight. Low of 28F with a windchill as low as 21F. Winds from the SW at 5 to 15 mph.

  • Saturday

    Overcast. Fog early. High of 46F. Winds from the NW at 5 to 10 mph shifting to the NNE in the afternoon.

  • Saturday Night

    Overcast. Low of 28F. Winds from the NE at 5 to 10 mph.

  • Sunday

    Overcast. High of 34F with a windchill as low as 21F. Winds from the NNW at 5 to 15 mph.

  • Sunday Night

    Overcast. Low of 23F with a windchill as low as 16F. Winds from the North at 5 to 10 mph.

  • Monday

    Overcast. High of 30F with a windchill as low as 16F. Winds from the NE at 5 to 10 mph.

  • Monday Night

    Partly cloudy. Fog overnight. Low of 23F with a windchill as low as 14F. Winds from the East at 5 to 10 mph.

  • Tuesday

    Overcast. Fog early. High of 41F. Winds from the SSE at 10 to 15 mph.

  • Tuesday Night

    Mostly cloudy with a chance of rain. Fog overnight. Low of 39F. Breezy. Winds from the South at 15 to 25 mph. Chance of rain 40% with rainfall amounts near 0.2 in. possible.

  • Wednesday

    Overcast with a chance of a thunderstorm. Fog early. High of 41F. Breezy. Winds from the SW at 5 to 25 mph. Chance of rain 30%.

  • Wednesday Night

    Partly cloudy. Low of 32F. Winds less than 5 mph.

  • Thursday

    Clear. High of 36F. Winds from the NW at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 30F. Winds from the NW at 5 to 10 mph.

  • Friday

    Clear. High of 36F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 27F. Winds less than 5 mph.

  • Saturday

    Clear. High of 30F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 27F. Winds from the WSW at 5 to 10 mph.

Severe Weather Alert Descriptions

 Public Information Statement  Statement as of 5:15 PM CST on November 25, 2014


... Morning snowfall Roundup...

   the following are snow amounts for the previous 24-hours.
   Observations are usually taken at 7 am and taken by
   NWS cooperative observers and cocorahs observers.

   24-hour snowfall amounts for tuesday(11/25/14)...


Northern Illinois snow
location (county): fall(inches)

Hebron (mchenry)... ... ... ... ... ... ... ... ... ... 4.4
Dixon 3nnw (lee)... ... ... ... ... ... ... ... ... ... 4.4
Dixon 2sw (lee)... ... ... ... ... ... ... ... ... ... .4.1
Spring Grove 2n (mchenry)... ... ... ... ... ... ... 3.7
Amboy (lee)... ... ... ... ... ... ... ... ... ... ... ..3.5
Polo (ogle)... ... ... ... ... ... ... ... ... ... ... ..3.4
Botanic Gardens (cook)... ... ... ... ... ... ... ... 3.0
Woodstock 5nw (mchenry)... ... ... ... ... ... ... ..3.0
Byron 3n (ogle)... ... ... ... ... ... ... ... ... ... .2.8
Rockford 2ene (winnebago)... ... ... ... ... ... ... 2.7
Bull Valley 2wnw (mchenry)... ... ... ... ... ... ..2.4
Harvard 3sse (mchenry)... ... ... ... ... ... ... ... 2.4
Rockford 3ne (winnebago)... ... ... ... ... ... ... .2.3
Elgin 2w (kane)... ... ... ... ... ... ... ... ... ... .2.2
Roscoe 2ese (winnebago)... ... ... ... ... ... ... ..2.2
Roscoe 2se (winnebago)... ... ... ... ... ... ... ... 2.2
St. Charles (kane)... ... ... ... ... ... ... ... ... .2.0
Elburn (kane)... ... ... ... ... ... ... ... ... ... ... 2.0
Sterling 4ne (lee)... ... ... ... ... ... ... ... ... .2.0
Ashton (lee)... ... ... ... ... ... ... ... ... ... ... .2.0
Lake Villa 1ssw (lake)... ... ... ... ... ... ... ... 2.0
Lake Villa 2wsw (lake)... ... ... ... ... ... ... ... 2.0
Algonquin 1n (mchenry)... ... ... ... ... ... ... ... 2.0
New Lenox 2se (will)... ... ... ... ... ... ... ... ..2.0
Rockford 1nw (winnebago)... ... ... ... ... ... ... .2.0
St Charles (kane)... ... ... ... ... ... ... ... ... ..2.0
Capron (boone)... ... ... ... ... ... ... ... ... ... ..1.9
Bartlett 1se (du page)... ... ... ... ... ... ... ... 1.8
Rockford (winnebago)... ... ... ... ... ... ... ... ..1.8
De Kalb (de kalb)... ... ... ... ... ... ... ... ... ..1.7
La Salle (la salle)... ... ... ... ... ... ... ... ... 1.7
Geneva 2wsw (kane)... ... ... ... ... ... ... ... ... .1.6
Geneva 1ssw (kane)... ... ... ... ... ... ... ... ... .1.6
Elburn (kane)... ... ... ... ... ... ... ... ... ... ... 1.5
Orland Hills 1se (cook)... ... ... ... ... ... ... ..1.5
Aurora 4se (du page)... ... ... ... ... ... ... ... ..1.5
Roselle 1ese (du page)... ... ... ... ... ... ... ... 1.5
Gurnee 2w (lake)... ... ... ... ... ... ... ... ... ... 1.5
De Kalb (de kalb)... ... ... ... ... ... ... ... ... ..1.4
Downers Grove 0.4nne (du page)... ... ... ... ... .1.4
Yorkville 1w (kendall)... ... ... ... ... ... ... ... 1.4
Sugar Grove 1ne (kane)... ... ... ... ... ... ... ... 1.4
St. Charles 6nw (kane)... ... ... ... ... ... ... ... 1.4
Winfield (du page)... ... ... ... ... ... ... ... ... .1.4
Genoa (de kalb)... ... ... ... ... ... ... ... ... ... .1.3
Schaumburg 2e (cook)... ... ... ... ... ... ... ... .1.3
Carol Stream (du page)... ... ... ... ... ... ... ... 1.3
Lake Zurich (lake)... ... ... ... ... ... ... ... ... .1.3
Woodstock (mchenry)... ... ... ... ... ... ... ... ... 1.3
Plainfield 5sw (kendall)... ... ... ... ... ... ... .1.2
Buffalo Grove 2n (lake)... ... ... ... ... ... ... ..1.2
Mendota 1n (la salle)... ... ... ... ... ... ... ... .1.2
Steward (lee)... ... ... ... ... ... ... ... ... ... ... 1.2
Elk Grove Village 2wsw (cook)... ... ... ... ... ..1.1
Batavia 1wnw (kane)... ... ... ... ... ... ... ... ... 1.1
Waukegan 2n (lake)... ... ... ... ... ... ... ... ... .1.1
Lincolnshire 1.3wsw (lake)... ... ... ... ... ... ..1.1
Romeoville (will)... ... ... ... ... ... ... ... ... ..1.1
Aurora (kane)... ... ... ... ... ... ... ... ... ... ... 1.0
Barrington (lake)... ... ... ... ... ... ... ... ... ..1.0
Schaumburg 3wsw (cook)... ... ... ... ... ... ... ... 1.0
Elk Grove Village 1ese (cook)... ... ... ... ... ..1.0
Arlington Heights 2nnw (cook)... ... ... ... ... ..1.0
Westmont 1sse (du page)... ... ... ... ... ... ... ..1.0
Aurora 4se (du page)... ... ... ... ... ... ... ... ..1.0
Naperville 1nw (du page)... ... ... ... ... ... ... .1.0
Montgomery 1sse (kendall)... ... ... ... ... ... ... 1.0
Beach Park 1w (lake)... ... ... ... ... ... ... ... ..1.0
Gurnee 2ne (lake)... ... ... ... ... ... ... ... ... ..1.0
Riverwoods (lake)... ... ... ... ... ... ... ... ... ..1.0
New Lenox 4se (will)... ... ... ... ... ... ... ... ..1.0
New Lenox 3e (will)... ... ... ... ... ... ... ... ... 1.0
McHenry (mchenry)... ... ... ... ... ... ... ... ... ..1.0
Rochelle (ogle)... ... ... ... ... ... ... ... ... ... .1.0
Yorkville 2se (kendall)... ... ... ... ... ... ... ..1.0
Channahon (will)... ... ... ... ... ... ... ... ... ... 0.9
La Grange Park 1ssw (cook)... ... ... ... ... ... ..0.9
Ottawa 2n (la salle)... ... ... ... ... ... ... ... ..0.9
Homer Glen 1ene (will)... ... ... ... ... ... ... ... 0.9
Homer Glen 4wnw (will)... ... ... ... ... ... ... ... 0.9
ohare (cook)... ... ... ... ... ... ... ... ... ... ... .0.9
Elgin (kane)... ... ... ... ... ... ... ... ... ... ... .0.8
Earlville 3s (la salle)... ... ... ... ... ... ... ..0.8
Park Ridge 1wnw (cook)... ... ... ... ... ... ... ... 0.8
Lincolnwood 2e (cook)... ... ... ... ... ... ... ... .0.8
Malta (de kalb)... ... ... ... ... ... ... ... ... ... .0.8
Elgin 1s (kane)... ... ... ... ... ... ... ... ... ... .0.8
Elburn 3nne (kane)... ... ... ... ... ... ... ... ... .0.8
Mundelein (lake)... ... ... ... ... ... ... ... ... ... 0.8
Lisle Morton arb (du page)... ... ... ... ... ... ..0.8
Willow Springs (cook)... ... ... ... ... ... ... ... .0.8
Palatine 1e (cook)... ... ... ... ... ... ... ... ... .0.7
Burr Ridge 2sw (du page)... ... ... ... ... ... ... .0.7
North Aurora 2ne (kane)... ... ... ... ... ... ... ..0.7
Joliet 2n (will)... ... ... ... ... ... ... ... ... ... 0.7
Elgin (kane)... ... ... ... ... ... ... ... ... ... ... .0.6
Bolingbrook 3ne (du page)... ... ... ... ... ... ... 0.6
Plainfield 2sse (will)... ... ... ... ... ... ... ... 0.6
midway coop (cook)... ... ... ... ... ... ... ... ... .0.6
Ottawa (la salle)... ... ... ... ... ... ... ... ... ..0.6
Plainfield (will)... ... ... ... ... ... ... ... ... ..0.6
Westmont (du page)... ... ... ... ... ... ... ... ... .0.6
Batavia (kane)... ... ... ... ... ... ... ... ... ... ..0.5
Bridgeview 1nnw (cook)... ... ... ... ... ... ... ... 0.5
Worth (cook)... ... ... ... ... ... ... ... ... ... ... .0.5
Harwood Heights 2nne (cook)... ... ... ... ... ... .0.5
Palos Park 1sw (cook)... ... ... ... ... ... ... ... .0.5
Cortland (de kalb)... ... ... ... ... ... ... ... ... .0.5
Highwood 1s (lake)... ... ... ... ... ... ... ... ... .0.5
Mundelein 2wnw (lake)... ... ... ... ... ... ... ... .0.5
Ottawa 1nw (la salle)... ... ... ... ... ... ... ... .0.5
Seneca 2ssw (la salle)... ... ... ... ... ... ... ... 0.5
Marseilles 6wnw (la salle)... ... ... ... ... ... ..0.5
Mendota 2se (la salle)... ... ... ... ... ... ... ... 0.5
Plainfield 1sw (will)... ... ... ... ... ... ... ... .0.5
Lockport 1se (will)... ... ... ... ... ... ... ... ... 0.5
Mendota (la salle)... ... ... ... ... ... ... ... ... .0.5
Paw Paw (lee)... ... ... ... ... ... ... ... ... ... ... 0.5
Shabbona (de kalb)... ... ... ... ... ... ... ... ... .0.5
Bourbonnais (kankakee)... ... ... ... ... ... ... ... 0.4
Coal City 4nnw (grundy)... ... ... ... ... ... ... ..0.4
Oak Park 2s (cook)... ... ... ... ... ... ... ... ... .0.4
Chicago Ridge (cook)... ... ... ... ... ... ... ... ..0.4
Carbon Hill 3.1n (grundy)... ... ... ... ... ... ... 0.4
Coal City (grundy)... ... ... ... ... ... ... ... ... .0.4
Manhattan 5ene (will)... ... ... ... ... ... ... ... .0.4
Crete 3e (will)... ... ... ... ... ... ... ... ... ... .0.4
Manhattan 1ese (will)... ... ... ... ... ... ... ... .0.4
Peotone (will)... ... ... ... ... ... ... ... ... ... ..0.4
Manhattan (will)... ... ... ... ... ... ... ... ... ... 0.4
Park Forest (cook)... ... ... ... ... ... ... ... ... .0.4
Glenview 1sw (cook)... ... ... ... ... ... ... ... ... 0.3
Dwight 4nnw (grundy)... ... ... ... ... ... ... ... ..0.3
Streator 4ene (la salle)... ... ... ... ... ... ... .0.3
Marseilles 3nw (la salle)... ... ... ... ... ... ... 0.3
Wilmington 3se (will)... ... ... ... ... ... ... ... .0.3
Marseilles (la salle)... ... ... ... ... ... ... ... .0.3
Peotone (will)... ... ... ... ... ... ... ... ... ... ..0.3
Chicago 6ese (cook)... ... ... ... ... ... ... ... ... 0.2
Oak Park 1nne (cook)... ... ... ... ... ... ... ... ..0.2
Bourbonnais 2nne (kankakee)... ... ... ... ... ... .0.2
Lincolnshire 1n (lake)... ... ... ... ... ... ... ... 0.2
Monee (will)... ... ... ... ... ... ... ... ... ... ... .0.2
Evanston 1n (cook)... ... ... ... ... ... ... ... ... .0.1
Countryside 1ene (cook)... ... ... ... ... ... ... ..0.1
Minooka (grundy)... ... ... ... ... ... ... ... ... ... 0.1
Chatsworth (livingston)... ... ... ... ... ... ... Trace
Dwight (livingston)... ... ... ... ... ... ... ... .Trace
Glenwood 2ese (cook)... ... ... ... ... ... ... ... trace
Oak Lawn 2wnw (cook)... ... ... ... ... ... ... ... trace
Watseka 6.9wnw (iroquois)... ... ... ... ... ... .trace
Lansing (cook)... ... ... ... ... ... ... ... ... ... trace
Milford (iroquois)... ... ... ... ... ... ... ... ..trace
Morris (grundy)... ... ... ... ... ... ... ... ... ..Trace
Pontiac (livingston)... ... ... ... ... ... ... ... trace
St Anne (kankakee)... ... ... ... ... ... ... ... ..trace

Northwest Indiana snow
location (county): fall(inches)

Dyer 1wnw (lake)... ... ... ... ... ... ... ... ... ... 0.5
Porter 1s (porter)... ... ... ... ... ... ... ... ... .0.2
de motte 1nnw (jasper)... ... ... ... ... ... ... .trace
de motte 4sw (jasper)... ... ... ... ... ... ... ..trace
Crown Point 2wsw (lake)... ... ... ... ... ... ... Trace
Munster 1sse (lake)... ... ... ... ... ... ... ... .Trace
St. John (lake)... ... ... ... ... ... ... ... ... ..Trace
(w9mal)merrillville 2nnw (lake)... ... ... ... .Trace
Gary 5ene (lake)... ... ... ... ... ... ... ... ... .trace
Mount Ayr 2nne (newton)... ... ... ... ... ... ... Trace
Valparaiso 1se (porter)... ... ... ... ... ... ... Trace
Valparaiso 6ssw (porter)... ... ... ... ... ... ..trace
Valparaiso 4sw (porter)... ... ... ... ... ... ... Trace
(kb9f)valparaiso 4s (porter)... ... ... ... ... .trace
Hebron 4ne (porter)... ... ... ... ... ... ... ... .Trace
Valparaiso 2nw (porter)... ... ... ... ... ... ... Trace
Valparaiso 6wsw (porter)... ... ... ... ... ... ..trace
Valparaiso 2n (porter)... ... ... ... ... ... ... .trace
Morocco (newton)... ... ... ... ... ... ... ... ... .trace



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Northern Illinois University, DeKalb, IL

Updated: 7:10 PM CST

Temperature: 16.5 °F Dew Point: 14 °F Humidity: 89% Wind: Calm Pressure: 30.13 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: Rob's Horsepower Haven, DeKalb, IL

Updated: 7:09 PM CST

Temperature: 15.8 °F Dew Point: 14 °F Humidity: 92% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: DeKalb, IL

Updated: 7:06 PM CST

Temperature: 17.7 °F Dew Point: 15 °F Humidity: 90% Wind: SSE at 7.0 mph Pressure: 30.20 in Hourly Precipitation: - Windchill: 8 °F Graphs

Location: Sycamore, IL

Updated: 7:10 PM CST

Temperature: 15.4 °F Dew Point: 13 °F Humidity: 89% Wind: SSW at 1.0 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 15 °F Graphs

Location: MesoWest MALTA1 IL US UPR, Malta, IL

Updated: 4:05 PM CST

Temperature: 18 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 18 °F Graphs

Location: Heron Creek, Sycamore, IL

Updated: 7:10 PM CST

Temperature: 14.9 °F Dew Point: 12 °F Humidity: 88% Wind: Calm Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 15 °F Graphs

Location: The Rockin' N, Waterman, IL

Updated: 7:10 PM CST

Temperature: 69.4 °F Dew Point: - Humidity: - Wind: North at - Pressure: 30.12 in Hourly Precipitation: - Windchill: - Graphs

Location: Out On the Farm, Clare, IL

Updated: 7:10 PM CST

Temperature: 11.5 °F Dew Point: 10 °F Humidity: 92% Wind: SSE at 1.0 mph Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 11 °F Graphs

Location: Ellen Oaks Subdivision, Genoa, IL

Updated: 7:10 PM CST

Temperature: 15.3 °F Dew Point: 14 °F Humidity: 93% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 15 °F Graphs

Location: Country Meadows, Kirkland, IL

Updated: 6:57 PM CST

Temperature: 12.2 °F Dew Point: 10 °F Humidity: 90% Wind: ESE at 1.0 mph Pressure: 30.17 in Hourly Precipitation: 0.00 in Windchill: 12 °F Graphs

Location: Genoa Road, Genoa, IL

Updated: 6:57 PM CST

Temperature: 15.4 °F Dew Point: 14 °F Humidity: 92% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 15 °F Graphs

Location: Columbine, Elburn, IL

Updated: 6:59 PM CST

Temperature: 15.5 °F Dew Point: 13 °F Humidity: 90% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 15 °F Graphs

Location: Columbine Square, Elburn, IL

Updated: 7:08 PM CST

Temperature: 13.1 °F Dew Point: 12 °F Humidity: 93% Wind: Calm Pressure: 30.17 in Hourly Precipitation: 0.00 in Windchill: 13 °F Graphs

Location: Prairie Highlands, Elburn, IL

Updated: 7:10 PM CST

Temperature: 17.1 °F Dew Point: 15 °F Humidity: 92% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 17 °F Graphs

Location: Hampshire, IL, Hampshire, IL

Updated: 7:10 PM CST

Temperature: 13.7 °F Dew Point: 10 °F Humidity: 85% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 14 °F Graphs

Location: K9GPC, Rochelle, IL

Updated: 7:10 PM CST

Temperature: 10.9 °F Dew Point: -7 °F Humidity: 44% Wind: Calm Pressure: 29.38 in Hourly Precipitation: 0.00 in Windchill: 11 °F Graphs

Location: CamptonHillsWeather.com Central Kane County, St Charles, IL

Updated: 7:10 PM CST

Temperature: 15.8 °F Dew Point: 13 °F Humidity: 90% Wind: WNW at 1.0 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: OakGrove, Hampshire, IL

Updated: 7:05 PM CST

Temperature: 13.3 °F Dew Point: 13 °F Humidity: 99% Wind: SSE at 1.1 mph Pressure: 30.04 in Hourly Precipitation: - Windchill: 13 °F Graphs

Location: Windswept Acres, Marengo, IL

Updated: 7:10 PM CST

Temperature: 15.3 °F Dew Point: 14 °F Humidity: 93% Wind: Calm Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 15 °F Graphs

Location: Mill Creek, Geneva, IL

Updated: 7:03 PM CST

Temperature: 16.2 °F Dew Point: 14 °F Humidity: 92% Wind: Calm Pressure: 30.17 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: Mill Creek (NE), Geneva, IL

Updated: 7:10 PM CST

Temperature: 17.2 °F Dew Point: 14 °F Humidity: 89% Wind: Calm Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 17 °F Graphs

Location: MesoWest FLAGG1 IL US UPR, Ashton, IL

Updated: 5:00 PM CST

Temperature: 20 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 20 °F Graphs

Location: WB9NJJ, Rochelle, IL

Updated: 7:10 PM CST

Temperature: 10.2 °F Dew Point: -8 °F Humidity: 42% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 10 °F Graphs

Location: Plano, Plano, IL

Updated: 7:04 PM CST

Temperature: 19.9 °F Dew Point: 17 °F Humidity: 88% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 20 °F Graphs

Location: Waterford Oaks, North Aurora, IL

Updated: 7:10 PM CST

Temperature: 18.4 °F Dew Point: 16 °F Humidity: 91% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 18 °F Graphs

Location: West Batavia, Batavia, IL

Updated: 7:06 PM CST

Temperature: 16.4 °F Dew Point: 14 °F Humidity: 89% Wind: Calm Pressure: 30.20 in Hourly Precipitation: - Windchill: 16 °F Graphs

Location: Dover Ridge, Geneva, IL

Updated: 7:10 PM CST

Temperature: 19.5 °F Dew Point: 17 °F Humidity: 89% Wind: West at 1.2 mph Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 20 °F Graphs

Location: Rural--2.75 mi WSW Sandwich, IL, Sandwich, IL

Updated: 7:09 PM CST

Temperature: 18.7 °F Dew Point: 12 °F Humidity: 75% Wind: Calm Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 19 °F Graphs

Location: Gilberts, IL, Gilberts, IL

Updated: 7:10 PM CST

Temperature: 14.4 °F Dew Point: 12 °F Humidity: 89% Wind: Calm Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 14 °F Graphs

Location: Hunt Club, St. Charles, IL

Updated: 7:10 PM CST

Temperature: 15.1 °F Dew Point: 12 °F Humidity: 88% Wind: Calm Pressure: 29.74 in Hourly Precipitation: 0.00 in Windchill: 15 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Chicago/Romeoville Illinois 
542 PM CST Tuesday Nov 25 2014 


Short term... 
231 PM CST 


Tonight through Wednesday... 
temperature inversion has been able to hold onto the clouds...with 
a stubborn stratus layer. Fortunately this wedge of clouds was 
slowly sliding east this afternoon...with some clearing taking 
place across western Illinois and stretching further west. Surface ridge was 
pushing east into southern MO/northern Arkansas...which placed the 
forecast area in the westerly flow at the surface. There is some 
potential that patchy fog may develop tonight...given the slowly 
eroding cloud cover and dew points not able to dry this afternoon. This 
currently is a low confidence scenario...but felt it was Worth 
mentioning. With some clearing likely to take place in the western 
County warning forecast area...temperatures should likely be able to radiate into the low teens 
there. Elsewhere overnight lows will hover around 18-22. 


Surface ridge for Wednesday will stretch from the western Gulf north into 
lower Michigan...and likely be slow to depart the region. This has 
been impacting the placement/moisture within a weak shortwave diving 
southeast across the upper Midwest for Wednesday. Guidance has continued 
to demonstrate less favorable setup for light snow and also timing for 
later Wednesday. Hi-res local solution even suggests flurries late Wednesday 
afternoon may be the extent of any precipitation. With at least some 
high/mid-lvl clouds...temperatures may again be a challenge. Current 
solutions point towards highs warming into the low/middle 30s...but 
could see temperatures struggling to warm beyond the low 30s. 


With the middle-level trough axis pivoting east across the forecast area 
Wednesday evening and some weak Omega into the moist layer...some light snow 
could produce a dusting Wednesday evening but the confidence with this 
scenario continues to diminish. A frontal boundary will then slide 
east across the region Wednesday night...with another ridge of high pressure 
slowly building in from the upper Midwest. 


Beachler 


&& 


Long term... 
231 PM CST 


Thanksgiving through Tuesday... 
500mb trough will be departing the region for Thanksgiving...with 
broad surface ridge building in from the west during the day. This should 
provide a gradual erosion to the cloud cover. Temperatures will hover in 
the middle/upper 20s...but if clouds can erode earlier then temperatures may be 
able to warm a degree or two higher. 


Middle-level flow begins to transition into a semi-zonal setup...with the 
potential for another low pressure system bringing a chance for light 
snow Friday. Ensembles continue to suggest that Sat could warm well 
into the 40s...perhaps touching 50 degrees in the southern County warning forecast area. For 
the second half of the weekend guidance differs on timing of a 
frontal boundary. If a slower solutions occurs...sun could also be a 
mild day with highs in the middle/upper 40s. 


Guidance has been suggesting a narrow baroclinic zone may develop 
along the Ohio Valley early next week...which could keep some light 
precipitation in the southeast forecast area. 


Beachler 


&& 


Aviation... 


//Ord and mdw concerns...updated 00z... 


* brief period of MVFR ceilings 1600-2000 feet possible early this 
evening. 


Ratzer 


//discussion...updated 00z... 


Weak surface high pressure drifting east across Illinois and 
western Indiana this evening. West winds 5-10 knots early will 
diminish to 5 knots or less overnight...gradually backing southwest 
this evening and eventually to southeast early Wednesday in 
response to an area of low pressure which will move from the 
Dakotas to the lower Ohio Valley. Winds...which should remain less 
than 10 knots through Wednesday...will then shift northerly Wednesday 
evening. 


Chicago terminals have been within western periphery of low level 
moisture trapped beneath an inversion based around 2500 feet above ground level... 
with MVFR stratocu deck in the 1600-2000 feet range lingering mainly 
south/east of Ord. This deck will continue to drift slowly east 
this evening mainly affecting mdw/gyy through the early evening 
hours. Erosion of this deck as occurred farther north across dpa- 
Ord so not expecting a ceiling at this time. With light wind 
regime there is a low-probability potential for some MVFR shallow 
fog to develop mainly away from Chicago metropolitan terminals late 
tonight...though confidence is low en0ugh to leave out of tafs at 
dpa and rfd at this time. 


VFR conditions expected overnight and Wednesday...with only 
middle/high clouds associated with disturbance passing to the 
southwest of the forecast area. 


Ratzer 




//Ord and mdw confidence...updated 00z... 


* medium-high confidence in no persistent MVFR ceiling this evening. 


* High confidence all other elements. 


Ratzer 


//outlook for Ord/mdw for 12z Thursday-12z Tuesday...updated 00z... 


Thursday...slight chance of MVFR light snow early...otherwise VFR. 


Friday...slight chance of light snow. MVFR possible. 


Saturday through Monday...primarily VFR...though a period of MVFR 
or IFR ceilings possible sataurday into early Sunday. 


Ratzer 


&& 


Marine... 
147 PM CST 


A high pressure ridge continues to push east causing winds to 
diminish across the region. Meanwhile a low currently over the 
Dakotas reaches the middle Mississippi Valley tomorrow morning. Light 
winds become east over the southern half of the lake and variable 
over the northern half tomorrow afternoon. The low weakens as it 
passes over central Illinois tomorrow and high pressure then builds over 
the plains tomorrow night. North to northwest winds increase to 30 
knots Thursday as the pressure gradient increases between the high over 
the plains and large low moving up the East Coast. Winds diminish 
as the high moves over the lake Thursday night. Winds then become 
south behind the high Friday. Guidance differs on how quickly the 
next low moves over Lake Superior...but the pressure gradient 
increases ahead of the low resulting in south winds around 30 knots 
late this week. Have the winds forecasted to come up Friday 
afternoon...but they could come up as late as Saturday morning. 20 
knots winds persist through the weekend with southwest winds becoming 
north Sunday afternoon. Another high pressure system moves over the 
lake early next week with strong south winds behind it. 


Jee 


&& 


Lot watches/warnings/advisories... 
Illinois...none. 
In...none. 
Lm...none. 
&& 


$$ 


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