Dekalb, Illinois Weather Conditions

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Current Conditions

  • 43°
  • Clear
  • Wind: ESE 15 mph
  • Humidity: 72%
  • Visibility: 10.0 miles
  • Dew Point: 34°
  • Pressure: 29.96 in. +
  • Heat Index: 35

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Next 12 Hours

7  am
10  am
1  pm
4  pm
7  pm
Mostly Cloudy
Mostly Cloudy
Clear
Clear
Chance of Rain
Chance of Rain
Rain Showers
Rain Showers
Rain Showers
Rain Showers
41°
54°
61°
61°
57°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Rain Showers
  • High: 63 °
  • Low: 43 °
  • Rain Showers
  • Friday
  • Partly Cloudy
  • High: 66 °
  • Low: 34 °
  • Partly Cloudy
  • Saturday
  • Chance of Rain
  • High: 55 °
  • Low: 41 °
  • Chance of Rain
  • Sunday
  • Chance of a Thunderstorm
  • High: 61 °
  • Low: 41 °
  • Chance of T-Storms
  • Monday
  • Chance of a Thunderstorm
  • High: 66 °
  • Low: 41 °
  • Chance of T-Storms

Forecast for Dekalb, Illinois

Updated: 4:00 AM CDT on April 24, 2014

  • Thursday

    Mostly cloudy in the morning, then overcast with rain showers. High of 63F. Breezy. Winds from the SSE at 20 to 25 mph with gusts to 30 mph. Chance of rain 60%.

  • Thursday Night

    Overcast with rain showers in the evening, then partly cloudy with a chance of rain. Low of 43F. Winds from the South at 10 to 15 mph shifting to the WNW after midnight. Chance of rain 90% with rainfall amounts near 0.5 in. possible.

  • Friday

    Clear in the morning, then partly cloudy. High of 66F. Breezy. Winds from the WNW at 15 to 20 mph with gusts to 30 mph.

  • Friday Night

    Partly cloudy. Low of 34F. Breezy. Winds from the NW at 10 to 20 mph shifting to the North after midnight.

  • Saturday

    Partly cloudy. High of 55F. Winds from the ENE at 10 to 15 mph. Chance of rain 20%.

  • Saturday Night

    Partly cloudy with a chance of rain, then a chance of rain after midnight. Fog overnight. Low of 41F. Winds from the ENE at 10 to 15 mph. Chance of rain 20%.

  • Sunday

    Mostly cloudy with a chance of rain, then a chance of a thunderstorm and rain in the afternoon. Fog early. High of 61F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 50%.

  • Sunday Night

    Partly cloudy with a chance of a thunderstorm and rain, then a chance of rain after midnight. Fog overnight. Low of 41F. Breezy. Winds from the East at 15 to 20 mph. Chance of rain 70% with rainfall amounts near 0.5 in. possible.

  • Monday

    Mostly cloudy with a chance of a thunderstorm and rain. Fog early. High of 66F. Breezy. Winds from the SE at 10 to 20 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.

  • Monday Night

    Partly cloudy with a chance of rain. Fog overnight. Low of 41F. Winds from the East at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.5 in. possible.

  • Tuesday

    Partly cloudy with a chance of rain. High of 64F. Winds from the NE at 5 to 15 mph. Chance of rain 60%.

  • Tuesday Night

    Partly cloudy with a chance of rain. Fog overnight. Low of 36F with a windchill as low as 27F. Breezy. Winds from the North at 15 to 20 mph. Chance of rain 40%.

  • Wednesday

    Partly cloudy with a chance of rain. High of 61F. Winds from the NNW at 10 to 15 mph. Chance of rain 50%.

  • Wednesday Night

    Partly cloudy with a chance of rain. Fog overnight. Low of 37F. Winds from the NW at 5 to 10 mph. Chance of rain 60%.

  • Thursday

    Partly cloudy with a chance of rain. High of 63F. Winds from the North at 10 to 15 mph. Chance of rain 50%.

  • Thursday Night

    Mostly cloudy. Low of 39F. Winds from the North at 5 to 15 mph.

  • Friday

    Partly cloudy with a chance of a thunderstorm. High of 66F. Winds from the North at 5 to 10 mph. Chance of rain 40%.

  • Friday Night

    Partly cloudy. Low of 45F. Winds less than 5 mph.

  • Saturday

    Clear. High of 70F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 46F. Winds less than 5 mph.

  • Sunday

    Clear. High of 73F. Winds less than 5 mph.

  • Sunday Night

    Clear. Fog overnight. Low of 46F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Public Information Statement  Statement as of 7:00 am CDT on April 24, 2014


Snowfall and snow depth reports.
Data provided by National Weather Service Chicago area and Rockford
area snowfall team.

                12 hr snowfall 12 hr snowfall total
location ending 6am ending 6pm snow
                today yesterday depth at 6am
Illinois

Downers Grove 0.0 / 0.0 / 0
Peotone 0.0 / 0.0 / 0
WillowBrook / 0.0 /
Yorkville 2se / / 0

Northwest Indiana




Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: South DeKalb, DeKalb, IL

Updated: 7:48 AM CDT

Temperature: 44.8 °F Dew Point: 38 °F Humidity: 76% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Northern Illinois University, DeKalb, IL

Updated: 7:48 AM CDT

Temperature: 45.5 °F Dew Point: 37 °F Humidity: 72% Wind: SE at 4.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Rob's Horsepower Haven, DeKalb, IL

Updated: 7:44 AM CDT

Temperature: 44.2 °F Dew Point: 37 °F Humidity: 75% Wind: SE at 5.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: DeKalb, IL

Updated: 7:45 AM CDT

Temperature: 45.5 °F Dew Point: 38 °F Humidity: 76% Wind: SE at 16.0 mph Pressure: 29.95 in Hourly Precipitation: - Windchill: 39 °F Graphs

Location: Sycamore, IL

Updated: 7:48 AM CDT

Temperature: 44.7 °F Dew Point: 36 °F Humidity: 71% Wind: SE at 13.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Heron Creek, Sycamore, IL

Updated: 7:48 AM CDT

Temperature: 44.9 °F Dew Point: 36 °F Humidity: 72% Wind: ENE at 1.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: OG Heron Creek, Sycamore, IL

Updated: 7:48 AM CDT

Temperature: 45.3 °F Dew Point: 37 °F Humidity: 73% Wind: ESE at 11.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Out On the Farm, Clare, IL

Updated: 7:43 AM CDT

Temperature: 44.4 °F Dew Point: 37 °F Humidity: 76% Wind: SE at 4.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Ellen Oaks Subdivision, Genoa, IL

Updated: 7:48 AM CDT

Temperature: 45.0 °F Dew Point: 37 °F Humidity: 74% Wind: ESE at 2.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Country Meadows, Kirkland, IL

Updated: 7:45 AM CDT

Temperature: 44.4 °F Dew Point: 37 °F Humidity: 74% Wind: ESE at 7.0 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: MesoWest ELBRN1 IL US UPR, Elburn, IL

Updated: 6:35 AM CDT

Temperature: 43 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Genoa Road, Genoa, IL

Updated: 7:39 AM CDT

Temperature: 44.3 °F Dew Point: 38 °F Humidity: 78% Wind: ESE at 3.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Columbine Square, Elburn, IL

Updated: 7:46 AM CDT

Temperature: 45.5 °F Dew Point: 37 °F Humidity: 71% Wind: NNE at 2.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Prairie Highlands, Elburn, IL

Updated: 7:45 AM CDT

Temperature: 46.0 °F Dew Point: 38 °F Humidity: 73% Wind: East at 5.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: MesoWest I-39 @ MP 81 / Lee County IL US ILDOT, Steward, IL

Updated: 7:00 AM CDT

Temperature: 42 °F Dew Point: 39 °F Humidity: 89% Wind: North at 21 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: Hampshire, IL, Hampshire, IL

Updated: 7:48 AM CDT

Temperature: 44.3 °F Dew Point: 35 °F Humidity: 70% Wind: East at 8.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: K9GPC, Rochelle, IL

Updated: 7:48 AM CDT

Temperature: 45.7 °F Dew Point: 7 °F Humidity: 20% Wind: ESE at 4.0 mph Pressure: 29.18 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

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

Updated: 7:48 AM CDT

Temperature: 44.5 °F Dew Point: 37 °F Humidity: 74% Wind: South at 8.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: OakGrove, Hampshire, IL

Updated: 7:44 AM CDT

Temperature: 44.1 °F Dew Point: 36 °F Humidity: 73% Wind: ESE at 10.9 mph Pressure: 29.87 in Hourly Precipitation: - Windchill: 38 °F Graphs

Location: Geneva, IL

Updated: 7:47 AM CDT

Temperature: 44.9 °F Dew Point: 36 °F Humidity: 71% Wind: NNE at 5.0 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Campton Hills, Campton Hills, IL

Updated: 7:48 AM CDT

Temperature: 44.8 °F Dew Point: 34 °F Humidity: 67% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Windswept Acres, Marengo, IL

Updated: 7:45 AM CDT

Temperature: 44.0 °F Dew Point: 38 °F Humidity: 79% Wind: WNW at 3.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Hidden Farms Estates, Marengo, IL

Updated: 7:46 AM CDT

Temperature: 44.5 °F Dew Point: 35 °F Humidity: 69% Wind: ESE at 6.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Mill Creek, Geneva, IL

Updated: 7:45 AM CDT

Temperature: 46.6 °F Dew Point: 36 °F Humidity: 67% Wind: ESE at 7.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Mill Creek (NE), Geneva, IL

Updated: 7:48 AM CDT

Temperature: 47.1 °F Dew Point: 37 °F Humidity: 69% Wind: SE at 8.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: MesoWest FLAGG1 IL US UPR, Ashton, IL

Updated: 6:20 AM CDT

Temperature: 41 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: WB9NJJ, Rochelle, IL

Updated: 7:48 AM CDT

Temperature: 46.0 °F Dew Point: 18 °F Humidity: 32% Wind: NNE at 4.5 mph Pressure: 29.65 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Thornwood, South Elgin, IL

Updated: 7:46 AM CDT

Temperature: 45.7 °F Dew Point: 36 °F Humidity: 68% Wind: ESE at 4.7 mph Pressure: 29.88 in Hourly Precipitation: - Windchill: 43 °F Graphs

Location: Plano, Plano, IL

Updated: 7:33 AM CDT

Temperature: 47.0 °F Dew Point: 38 °F Humidity: 72% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Waterford Oaks, North Aurora, IL

Updated: 7:48 AM CDT

Temperature: 48.3 °F Dew Point: 37 °F Humidity: 65% Wind: East at 11.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: West Batavia, Batavia, IL

Updated: 7:46 AM CDT

Temperature: 47.4 °F Dew Point: 37 °F Humidity: 67% Wind: SE at 10.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Dover Ridge, Geneva, IL

Updated: 7:48 AM CDT

Temperature: 46.0 °F Dew Point: 36 °F Humidity: 69% Wind: ESE at 3.5 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

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

Updated: 7:39 AM CDT

Temperature: 46.4 °F Dew Point: 37 °F Humidity: 69% Wind: ENE at 15.2 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Gilberts, IL, Gilberts, IL

Updated: 7:48 AM CDT

Temperature: 44.6 °F Dew Point: 34 °F Humidity: 65% Wind: East at 4.5 mph Pressure: 29.57 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Belvidere, Belvidere, IL

Updated: 7:44 AM CDT

Temperature: 44.4 °F Dew Point: 35 °F Humidity: 69% Wind: ESE at 13.5 mph Pressure: 29.73 in Hourly Precipitation: - Windchill: 38 °F Graphs

Location: MesoWest I-39 @ Kishwaukee River Bridge IL US ILDOT, Rockford, IL

Updated: 7:00 AM CDT

Temperature: 41 °F Dew Point: 36 °F Humidity: 83% Wind: ESE at 5 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Prairie, Belvidere, IL

Updated: 6:55 AM CDT

Temperature: 41.1 °F Dew Point: 34 °F Humidity: 75% Wind: ESE at 5.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Hunt Club, St. Charles, IL

Updated: 7:47 AM CDT

Temperature: 46.9 °F Dew Point: 39 °F Humidity: 74% Wind: Calm Pressure: 29.56 in Hourly Precipitation: 0.00 in Windchill: 47 °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 
657 am CDT Thursday Apr 24 2014 


Discussion... 
351 am CDT 


Main focus this morning is with slower progression of surface low 
and cold front and associated rain especially late today/tonight. 
Breezy/mild day Friday...before second cold front passes Friday 
evening and sets stage for prolonged period of cool/wet weather 
especially Saturday night-Wednesday. 


Band of showers/graupel with lead short wave trough continues to 
lift northeast across north/northeast parts of the County Warning Area at 0830z. 
Drying evident upstream into western IL/MO...with near term guidance 
in good agreement in suggesting most of forecast area will see dry 
weather for much of the morning/early afternoon hours as initial 
elevated warm frontal precipitation lifts north of the area. Trend in model 
guidance over the past 24 hours has been to slow eastward 
progression of cold front...with deeper southern stream short wave 
also resulting in surface low reflection tracking farther south 
across central Illinois. Overall...only real change to going forecast was 
to slow arrival and departure of higher probability of precipitation with the front through 
tonight. With steadier rainfall tonight...still looks to be about a 
half inch area wide. Forecast soundings indicate lapse rates not 
particularly impressive...and have only indicated isolated thunder 
mainly with approach of cold late today/tonight. Front clears 
eastern County Warning Area around sunrise Friday morning...with weak flat surface 
ridge developing across the area during the day. Deeper mixing and 
subsidence indicate Friday may be the mildest day of the stretch 
with middle 60s-low 70s expected from far north to far south. 


As indicated over the past few days...another cold front associated 
with northern stream disturbance does settle south across the 
forecast area Friday evening. Models continue to have some 
difficulty pinning down exact timing/placement of the front as it 
slows up over central Illinois/in Friday night...though most guidance does 
indicate potential for some spotty light precipitation as front undercuts 
west-southwest flow aloft. With confidence in timing/placement of 
any light showers rather low...have broad-brushed slight chance 
overnight though not expecting rain to amount to much. 


Brief intrusion of high pressure ridging from the north on Saturday 
expected to yield dry but cooler weather...before stationary frontal 
boundary to our south becomes focus for precipitation development Saturday 
night through the extended portion of the forecast as closed upper 
low and its associated surface circulation slowly wobbles from the 
plains to the Great Lakes region through the middle of next week. 
Cool and generally wet weather to predominate...with east-northeast 
low level winds and persistent moist ascent from the south above the 
stationary baroclinic zone to our south. Guidance has trended 
generally warmer aloft Sunday-Tuesday...though aforementioned low 
level winds off Lake Michigan will likely make for a fairly large 
gradient from north to south for much of the period...with highs 
along the lake in the 40s...while 60s are more prevalent south of 
the I-80 corridor. 


Ratzer 


&& 


Aviation... 


//Ord and mdw concerns...updated 12z... 


* strong/gusty southeast winds today. 


* Showers later tonight into early Friday morning. 


* Low end MVFR ceilings likely tonight into early Friday 
morning...with a possibility for IFR ceilings. 


Rodriguez 


//discussion...updated 12z... 


VFR ceilings in place this morning with any lingering showers well 
north/northeast of the terminals at this time. Expect dry 
conditions for most of today and evening with only middle/high high 
level cloud cover likely for most of today. A slower evolution of 
the approaching system today is appearing likely and have pushed 
back timing of showers to later tonight when this trough of low 
pressure finally arrives. Although there does still appear to be 
some possible isolated light showers before then...expect any 
showers to brief and light and so have removed the vcsh mention 
for earlier this evening. Not expected thunder with the showers 
tonight as best instability/moisture will remain well south of all 
the terminals. VFR ceilings this evening will likely fall to low 
end MVFR for a time tonight into early Friday morning...with a 
possibility for some periods of IFR. Confidence is low with 
regards to the IFR and so have left out any mention in the tafs. 


East southeast winds are in place this morning and are steadily 
increasing at this hour. With the surface gradient becoming 
organized this morning...expect winds/gusts to rapidly increase 
over the next couple of hours and remain high through the 
afternoon. Gusts of around 30kt are possible for a time 
today...before winds/gusts diminish late in the afternoon and 
early evening. Persistent southeast winds will likely become more 
variable within the trough/precipitation axis later tonight before 
turning to the northwest on the backside of this system...staying 
this direction into Friday. 


Rodriguez 




//Ord and mdw confidence...updated 12z... 


* high confidence with wind speed/direction. 


* Medium high confidence with showers and timing tonight. 


* Medium high confidence with MVFR ceilings...with low confidence 
for possible IFR ceilings. 


Rodriguez 


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


Friday night...slight chance of showers...otherwise VFR. 


Saturday...chance of showers late...otherwise VFR. 


Sunday...chance of showers...otherwise VFR. 


Monday...chance of showers...otherwise VFR. 


Tuesday...chance of showers...otherwise VFR. 


Wednesday...chance of showers...otherwise VFR. 


Rodriguez 


&& 


Marine... 
443 am CDT 


Lighter flow remaining over the lake early this morning with 
weaker surface pattern still in place. Although...expect east to 
southeast winds to rapidly increase through middle morning and then 
especially into the afternoon when to 30 knots winds will be 
observed...in response to an approaching trough of low pressure. 
East to southeast winds will still remain to 30 knots this evening 
but slowly diminish as this trough of low pressure moves through 
the region. Winds will begin turning to the west/northeast on the 
backside of this system late tonight into Friday before turning 
more northerly Friday night into Saturday. 


Rodriguez 


&& 


Lot watches/warnings/advisories... 
Illinois...none. 
In...none. 
Lm...Small Craft Advisory...lmz740-lmz741-lmz742-lmz743-lmz744- 
lmz745...10 am Thursday to 10 PM Thursday. 


&& 


$$ 


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