Seattle, Washington Weather Conditions

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Current Conditions

  • 62°
  • Overcast
  • Wind: ESE 7 mph
  • Humidity: 80%
  • Visibility: 10.0 miles
  • Dew Point: 56°
  • Pressure: 29.99 in. +

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Next 12 Hours

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2  pm
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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Chance of Rain
  • High: 73 °
  • Low: 55 °
  • Chance of Rain
  • Monday
  • Chance of Rain
  • High: 75 °
  • Low: 57 °
  • Chance of Rain
  • Tuesday
  • Chance of Rain
  • High: 68 °
  • Low: 55 °
  • Chance of Rain
  • Wednesday
  • Partly Cloudy
  • High: 68 °
  • Low: 54 °
  • Partly Cloudy
  • Thursday
  • Partly Cloudy
  • High: 75 °
  • Low: 57 °
  • Partly Cloudy

Forecast for Seattle, Washington

Updated: 2:00 AM PDT on August 31, 2014

  • Sunday

    Overcast with a chance of rain. High of 73F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.

  • Sunday Night

    Overcast with a chance of rain. Low of 55F. Winds less than 5 mph. Chance of rain 20%.

  • Monday

    Overcast with a chance of rain in the morning, then partly cloudy. High of 75F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.

  • Monday Night

    Mostly cloudy with a chance of rain after midnight. Low of 57F. Winds from the North at 5 to 10 mph.

  • Tuesday

    Overcast with a chance of rain in the morning, then partly cloudy with a chance of rain. High of 68F. Winds from the North at 5 to 10 mph. Chance of rain 30%.

  • Tuesday Night

    Partly cloudy with a chance of rain. Low of 55F. Winds less than 5 mph. Chance of rain 40%.

  • Wednesday

    Partly cloudy in the morning, then overcast. High of 68F. Winds less than 5 mph.

  • Wednesday Night

    Partly cloudy in the evening, then clear. Low of 54F. Winds less than 5 mph.

  • Thursday

    Partly cloudy. High of 75F. Winds from the North at 5 to 10 mph.

  • Thursday Night

    Partly cloudy. Low of 57F. Winds less than 5 mph.

  • Friday

    Clear. High of 75F. Winds from the North at 5 to 10 mph.

  • Friday Night

    Clear. Low of 59F. Winds less than 5 mph.

  • Saturday

    Partly cloudy. High of 81F. Winds from the North at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 57F. Winds less than 5 mph.

  • Sunday

    Clear. High of 81F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 59F. Winds less than 5 mph.

  • Monday

    Clear. High of 79F. Winds less than 5 mph.

  • Monday Night

    Partly cloudy. Low of 48F. Winds less than 5 mph.

  • Tuesday

    Mostly cloudy. High of 75F. Winds less than 5 mph.

  • Tuesday Night

    Partly cloudy. Low of 48F. Winds less than 5 mph.

  • Wednesday

    Partly cloudy with a chance of a thunderstorm. High of 75F. Winds less than 5 mph. Chance of rain 40%.

  • Wednesday Night

    Clear. Low of 48F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Herrera, Inc., Seattle, WA

Updated: 1:13 AM PDT

Temperature: 58.7 °F Dew Point: 56 °F Humidity: 92% Wind: West at 6.0 mph Pressure: 29.99 in Hourly Precipitation: 0.02 in Graphs

Location: UW Integrated Design Lab, Bullitt Center, Seattle, WA

Updated: 1:13 AM PDT

Temperature: 58.4 °F Dew Point: 56 °F Humidity: 93% Wind: SSE at 1.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Graphs

Location: Capitol Hill, Seattle, WA

Updated: 12:58 AM PDT

Temperature: 59.0 °F Dew Point: 57 °F Humidity: 93% Wind: East at 5.0 mph Pressure: 29.96 in Hourly Precipitation: 0.01 in Graphs

Location: Queen Anne Southern Exposure, Seattle, WA

Updated: 1:10 AM PDT

Temperature: 59.2 °F Dew Point: 54 °F Humidity: 84% Wind: SE at 2.0 mph Pressure: 29.71 in Hourly Precipitation: 0.00 in Graphs

Location: Queen Anne, Seattle, WA

Updated: 1:12 AM PDT

Temperature: 58.3 °F Dew Point: 58 °F Humidity: 99% Wind: Calm Pressure: 29.68 in Hourly Precipitation: 0.00 in Graphs

Location: Eastlake on Lake Union, Seattle, WA

Updated: 1:06 AM PDT

Temperature: 60.1 °F Dew Point: 59 °F Humidity: 97% Wind: East at 3.2 mph Pressure: 29.66 in Hourly Precipitation: - Graphs

Location: Queen Anne - Toddster weather, Seattle, WA

Updated: 1:13 AM PDT

Temperature: 58.3 °F Dew Point: 54 °F Humidity: 87% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.02 in Graphs

Location: Fremont Troll, Seattle, WA

Updated: 1:13 AM PDT

Temperature: 59.4 °F Dew Point: 58 °F Humidity: 94% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.04 in Graphs

Location: MesoWest UNIVERSITY OF WASHINGTON WA US WAAQ, Seattle, WA

Updated: 11:55 PM PDT

Temperature: 60 °F Dew Point: 59 °F Humidity: 96% Wind: SE at 3 mph Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: University District, Seattle, WA

Updated: 1:10 AM PDT

Temperature: 59.9 °F Dew Point: 58 °F Humidity: 92% Wind: East at 4.0 mph Pressure: 29.94 in Hourly Precipitation: 0.03 in Graphs

Location: Fremont, Seattle, WA

Updated: 1:11 AM PDT

Temperature: 59.0 °F Dew Point: 57 °F Humidity: 93% Wind: ESE at 2.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Graphs

Location: Queen Anne - Western Exposure, Seattle, WA

Updated: 1:10 AM PDT

Temperature: 58.6 °F Dew Point: 56 °F Humidity: 93% Wind: ESE at 2.0 mph Pressure: 29.94 in Hourly Precipitation: 0.04 in Graphs

Location: Alki, Seattle, WA

Updated: 1:13 AM PDT

Temperature: 59.7 °F Dew Point: 56 °F Humidity: 89% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Graphs

Location: MesoWest SEATTLE DUWAMISH EAST MARGINAL WA US WAAQ, Seattle, WA

Updated: 12:00 AM PDT

Temperature: 61 °F Dew Point: - Humidity: - Wind: SSE at 6 mph Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: North Delridge, Seattle, WA

Updated: 1:00 AM PDT

Temperature: 59.4 °F Dew Point: 55 °F Humidity: 86% Wind: SE at 1.1 mph Pressure: 29.69 in Hourly Precipitation: - Graphs

Location: Phinney Ridge, Seattle, WA

Updated: 1:13 AM PDT

Temperature: 58.2 °F Dew Point: 56 °F Humidity: 94% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.06 in Graphs

Location: Magnolia - MaxHome, Seattle, WA

Updated: 1:13 AM PDT

Temperature: 59.2 °F Dew Point: 58 °F Humidity: 95% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.01 in Graphs

Location: SE Green Lake, Seattle, WA

Updated: 1:13 AM PDT

Temperature: 58.5 °F Dew Point: 57 °F Humidity: 95% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.06 in Graphs

Location: Tangletown, Seattle, WA

Updated: 1:13 AM PDT

Temperature: 58.8 °F Dew Point: 57 °F Humidity: 95% Wind: SE at 1.1 mph Pressure: 29.97 in Hourly Precipitation: 0.04 in Graphs

Location: Ballard - West Woodland, Seattle, WA

Updated: 1:13 AM PDT

Temperature: 59.5 °F Dew Point: 58 °F Humidity: 94% Wind: ESE at 2.0 mph Pressure: 29.99 in Hourly Precipitation: 0.06 in Graphs

Location: Genesee Hill, West Seattle, Seattle, WA

Updated: 1:13 AM PDT

Temperature: 59.0 °F Dew Point: 57 °F Humidity: 94% Wind: SSW at 1.8 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Graphs

Location: Roosevelt - Tomster, Seattle, WA

Updated: 1:13 AM PDT

Temperature: 57.8 °F Dew Point: 56 °F Humidity: 95% Wind: NNW at 4.0 mph Pressure: 29.94 in Hourly Precipitation: 0.04 in Graphs

Location: Greenlake East, Seattle, WA

Updated: 1:04 AM PDT

Temperature: 58.3 °F Dew Point: 57 °F Humidity: 96% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.05 in Graphs

Location: Phinney Ridge, Seattle, WA

Updated: 1:13 AM PDT

Temperature: 58.6 °F Dew Point: 55 °F Humidity: 88% Wind: East at 4.0 mph Pressure: 29.98 in Hourly Precipitation: 0.06 in Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Seattle Washington 
855 PM PDT Sat Aug 30 2014 


Synopsis...westerly flow aloft will maintain a unsettled and cooler 
than normal weather pattern over western Washington through 
Wednesday. Weak weather systems embedded in the flow aloft will 
bring periods of light showers mainly Sunday and Tuesday into 
Wednesday morning. An offshore upper level ridge will move over the 
region after Wednesday for warmer and drier weather into next 
weekend. 


&& 


Short term...weak showers drifting off of the Olympics this evening 
have been forming a narrow band across the area from sea-tac to 
South Seattle. These showers should diminish by around 06z/11 PM as 
the air mass becomes more stable. 


A stronger than normal 110kt westerly jetstream will be the primary 
factor in the weather pattern through middle week. Small weak upper 
level shortwave troughs embedded in the west-northwest flow aloft will move 
periodically across West Washington. A weak shortwave trough near 135w at 02z/7 
PM will move across the area Sunday morning. This wave is not very 
strong to begin with and the dark slot behind the wave on water 
vapor imagery has been filling in...indicating a weakening trend. 
This wave should bring a minor increase in shower activity Sunday 
morning...but not enough to go with likely probability of precipitation. Vorticity forecasts 
suggest another weak wave trailing the first feature...which should 
maintain scattered showers Sunday afternoon. 


The models have been having an understandably difficult time in 
resolving these small weak waves...and are still having a hard time 
with the third wave Sunday evening. This feature is the stronger 
looking one on water vapor imagery out near 155w at 02z. Previous 
model runs brought the wave more directly across the area...but 
latest models take it over S b... brushing the north part of West Washington 
Sunday evening. Current probability of precipitation may be a little low for Sunday and may 
be a little high Sunday evening. 


The jetstream will shift north over S b.C. On Monday as a flat weak 
shortwave ridge moves across the area. Monday should be generally 
dry and slightly warmer with a bit more sunshine as well. 


The models agree on bringing a stronger higher amplitude shortwave 
trough across the area Tuesday afternoon through Tuesday night. 
Models have been rather miserly with the probability of precipitation so it would not be 
surprising to see future guidance hit it a little harder. At this 
point the nam12 looks it has a reasonable solution. 


With the active weather pattern early this week...maximum temperatures 
will remain below normal in the 60s to lower 70s. Kam 


Long term...previous discussion from the 333 PM afd...overall 
confidence for the big picture in the extended period a bit higher 
than overnight. Medium range models continue to show an upper level 
trough moving into the region Tuesday afternoon and evening bringing 
another round of showers to the region through early Wednesday 
morning. Models all show the zonal flow over the northeast Pacific 
breaking down at this point into a higher amplitude pattern as a 
ridge builds into the Gulf of Alaska. Models now in better agreement 
on the downstream development of dry split flow over Pacific 
northwest Thursday followed by the large scale ridge shifting east 
Friday through the weekend with continued dry and warmer weather. 


&& 


Aviation...an upper level trough over the region will shift eastward 
tonight with light northwest flow aloft. Low level onshore flow behind the 
surface trough will dominate through Sunday. Moist and weakly 
unstable atmosphere. Scattered showers. 


A Puget Sound sound convergence zone will focus most shower activity 
between Tacoma and Everett. The convergence zone should 
dissipate later tonight. There could be periods of MVFR at the 
kbfi/ksea terminals tonight...with MVFR becoming more widespread 
late tonight and Sunday morning. Clouds should lift to VFR with 
scattering by midday Sunday. 


Ksea...a Puget Sound sound convergence zone will keep shower activity 
going through much of tonight...then just a few showers through 
Sunday. Ceilings mostly VFR this evening...with MVFR ceilings developing 
later tonight and Sunday morning. Improving ceilings after 18z. 


&& 


Marine...westerly flow behind a trough will maintain small craft 
winds in the central and east Strait through most of tonight. The 
flow will weaken on Sunday. A weak decaying surface trough will 
increase onshore flow slightly on Sunday night. Another stronger 
trough will bring increased onshore flow Tuesday and Wednesday. 


&& 


Sew watches/warnings/advisories... 
Washington...none. 
Pz...Small Craft Advisory central and eastern Strait of Juan Delaware fuca 
through 3 am PDT Sunday. 


&& 


$$ 


Www.Weather.Gov/Seattle 


You can see an illustrated version of this forecast discussion at 
www.Weather.Gov/Seattle/gafd/latest_webafd.Html 



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