Seattle, Washington Weather Conditions

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Current Conditions

  • 59°
  • Mostly Cloudy
  • Wind: Calm
  • Humidity: 69%
  • Visibility: 10.0 miles
  • Dew Point: 49°
  • Pressure: 29.95 in. +

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Next 12 Hours

9  pm
12  am
3  am
6  am
9  am
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Chance of Rain
Chance of Rain
56°
54°
53°
52°
56°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Chance of Rain
  • High: 67 °
  • Low: 51 °
  • Chance of Rain
  • Friday
  • Clear
  • High: 68 °
  • Low: 50 °
  • Clear
  • Saturday
  • Clear
  • High: 72 °
  • Low: 54 °
  • Clear
  • Sunday
  • Chance of Rain
  • High: 67 °
  • Low: 54 °
  • Chance of Rain
  • Monday
  • Chance of Rain
  • High: 71 °
  • Low: 54 °
  • Chance of Rain

Forecast for Seattle, Washington

Updated: 8:40 PM PDT on September 2, 2015

  • Rest of Tonight

    Mostly cloudy. Scattered showers. Lows in the upper 40s to mid 50s. North wind 5 to 15 mph becoming south after midnight.

  • Thursday

    Mostly cloudy. A chance of showers and afternoon thunderstorms. Highs in the lower to mid 60s. South wind around 10 mph becoming southwest in the afternoon.

  • Thursday Night

    Mostly cloudy with a chance of showers. Lows in the mid 40s to lower 50s. North wind to 10 mph.

  • Friday

    Partly sunny. Highs in the mid to upper 60s. North wind to 10 mph increasing to 10 to 15 mph in the afternoon.

  • Friday Night

    Partly cloudy. Lows in the upper 40s to mid 50s. North wind around 10 mph in the evening becoming light.

  • Saturday

    Sunny. Highs in the lower 70s.

  • Saturday Night

    Mostly cloudy. Lows in the lower to mid 50s.

  • Sunday

    Mostly cloudy with a chance of showers. Highs in the mid to upper 60s.

  • Sunday Night

    Mostly cloudy. A chance of showers in the evening. Lows in the lower to mid 50s.

  • Labor Day

    Mostly sunny. Highs near 70.

  • Monday Night

    Mostly cloudy with a chance of showers. Lows in the lower to mid 50s.

  • Tuesday

    Mostly cloudy with a chance of showers. Highs in the lower 70s.

  • Tuesday Night

    Mostly cloudy with a chance of showers. Lows in the mid to upper 50s.

  • Wednesday

    Partly sunny. Highs in the lower 70s.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Belltown, Seattle, WA

Updated: 9:21 PM PDT

Temperature: 62.2 °F Dew Point: 49 °F Humidity: 61% Wind: North at - Pressure: 29.85 in Hourly Precipitation: - Graphs

Location: Washington 99, Seattle, WA

Updated: 9:21 PM PDT

Temperature: 60.8 °F Dew Point: 49 °F Humidity: 64% Wind: North at - Pressure: 30.03 in Hourly Precipitation: 0.00 in Graphs

Location: Belltown, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 61.2 °F Dew Point: 49 °F Humidity: 65% Wind: North at - Pressure: 29.94 in Hourly Precipitation: 0.00 in Graphs

Location: Herrera, Inc., Seattle, WA

Updated: 9:25 PM PDT

Temperature: 56.4 °F Dew Point: 50 °F Humidity: 79% Wind: SW at 3.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Graphs

Location: APRSWXNET, Seattle, WA

Updated: 9:07 PM PDT

Temperature: 57 °F Dew Point: 49 °F Humidity: 75% Wind: Calm Pressure: 30.57 in Hourly Precipitation: 0.00 in Graphs

Location: Belltown, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 60.1 °F Dew Point: 50 °F Humidity: 70% Wind: North at - Pressure: 29.81 in Hourly Precipitation: - Graphs

Location: South Lake Union, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 57.4 °F Dew Point: 49 °F Humidity: 73% Wind: North at - Pressure: 29.97 in Hourly Precipitation: 0.00 in Graphs

Location: Belltown, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 56.7 °F Dew Point: 51 °F Humidity: 81% Wind: North at - Pressure: 29.85 in Hourly Precipitation: 0.00 in Graphs

Location: Belltown, Seattle, WA

Updated: 9:25 PM PDT

Temperature: 57.4 °F Dew Point: 52 °F Humidity: 81% Wind: Calm Pressure: 30.95 in Hourly Precipitation: 0.00 in Graphs

Location: Belltown, Seattle, WA

Updated: 9:18 PM PDT

Temperature: 54.9 °F Dew Point: 50 °F Humidity: 82% Wind: Calm Pressure: 29.75 in Hourly Precipitation: - Graphs

Location: South Lake Union, Seattle, WA

Updated: 9:25 PM PDT

Temperature: 59.7 °F Dew Point: 51 °F Humidity: 73% Wind: Calm Pressure: 29.77 in Hourly Precipitation: 0.00 in Graphs

Location: Space Needle, Seattle, WA

Updated: 9:18 PM PDT

Temperature: 53.9 °F Dew Point: 49 °F Humidity: 82% Wind: East at 5.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 9:25 PM PDT

Temperature: 54.0 °F Dew Point: 50 °F Humidity: 85% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Graphs

Location: Capitol Hill, Seattle, WA

Updated: 9:24 PM PDT

Temperature: 54.5 °F Dew Point: 50 °F Humidity: 86% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Graphs

Location: Stevens, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 58.1 °F Dew Point: 47 °F Humidity: 66% Wind: North at - Pressure: 30.01 in Hourly Precipitation: 0.00 in Graphs

Location: Queen Anne Southern Exposure, Seattle, WA

Updated: 9:24 PM PDT

Temperature: 55.8 °F Dew Point: 47 °F Humidity: 72% Wind: East at 2.0 mph Pressure: 29.67 in Hourly Precipitation: 0.00 in Graphs

Location: Stevens, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 54.3 °F Dew Point: 49 °F Humidity: 83% Wind: North at - Pressure: 29.98 in Hourly Precipitation: - Graphs

Location: Fairview Avenue East, Seattle, WA

Updated: 8:22 PM PDT

Temperature: 60.3 °F Dew Point: 53 °F Humidity: 77% Wind: North at - Pressure: 29.92 in Hourly Precipitation: 0.00 in Graphs

Location: Madison Valley, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 53.1 °F Dew Point: 50 °F Humidity: 91% Wind: Calm Pressure: 29.87 in Hourly Precipitation: - Graphs

Location: Unnamed Road, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 56.5 °F Dew Point: 50 °F Humidity: 79% Wind: North at - Pressure: 29.43 in Hourly Precipitation: - Graphs

Location: Seattle Girls School, Seattle, WA

Updated: 9:25 PM PDT

Temperature: 53.1 °F Dew Point: 50 °F Humidity: 88% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Graphs

Location: Madrona, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 52.0 °F Dew Point: 50 °F Humidity: 94% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Graphs

Location: Judkins Park, Seattle, WA

Updated: 9:24 PM PDT

Temperature: 54.3 °F Dew Point: 54 °F Humidity: 97% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Graphs

Location: News from the Otter, Seattle, WA

Updated: 9:24 PM PDT

Temperature: 52.6 °F Dew Point: 49 °F Humidity: 89% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Graphs

Location: Stevens, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 58.6 °F Dew Point: 50 °F Humidity: 74% Wind: North at - Pressure: 29.59 in Hourly Precipitation: - Graphs

Location: Central District, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 55.4 °F Dew Point: 47 °F Humidity: 74% Wind: North at - Pressure: 29.90 in Hourly Precipitation: 0.00 in Graphs

Location: Eastlake on Lake Union, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 56.5 °F Dew Point: 50 °F Humidity: 79% Wind: ESE at 1.7 mph Pressure: 29.60 in Hourly Precipitation: - Graphs

Location: Leschi, Seattle, WA

Updated: 9:25 PM PDT

Temperature: 54.0 °F Dew Point: 51 °F Humidity: 91% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Graphs

Location: Queen Anne - Toddster weather, Seattle, WA

Updated: 9:25 PM PDT

Temperature: 53.4 °F Dew Point: 48 °F Humidity: 81% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Graphs

Location: Fremont Troll, Seattle, WA

Updated: 9:25 PM PDT

Temperature: 56.3 °F Dew Point: 51 °F Humidity: 82% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Graphs

Location: North Queen Anne, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 54.5 °F Dew Point: 50 °F Humidity: 86% Wind: North at - Pressure: 30.01 in Hourly Precipitation: 0.00 in Graphs

Location: West Seattle (Two Dogs Observatory), Seattle, WA

Updated: 9:19 PM PDT

Temperature: 54.0 °F Dew Point: 50 °F Humidity: 87% Wind: Calm Pressure: 29.95 in Hourly Precipitation: - Graphs

Location: Greater Duwamish, Seattle, WA

Updated: 9:20 PM PDT

Temperature: 56.7 °F Dew Point: 50 °F Humidity: 77% Wind: North at - Pressure: 29.77 in Hourly Precipitation: 0.00 in Graphs

Location: Beacon Hill, Seattle, WA

Updated: 9:24 PM PDT

Temperature: 56.3 °F Dew Point: 48 °F Humidity: 78% Wind: North at - Pressure: 29.77 in Hourly Precipitation: - Graphs

Location: Madison Park, Medina, WA

Updated: 9:20 PM PDT

Temperature: 58.3 °F Dew Point: 50 °F Humidity: 74% Wind: North at - Pressure: 29.80 in Hourly Precipitation: - Graphs

Location: University District, Seattle, WA

Updated: 9:25 PM PDT

Temperature: 56.4 °F Dew Point: 52 °F Humidity: 85% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Seattle Washington 
830 PM PDT Wednesday Sep 2 2015 


Synopsis...an upper level low over southwest British Columbia is 
expected to sag south over western Washington through Thursday. The 
associated cool unstable air mass should maintain some showers along 
with a threat of thunderstorms mainly during the afternoon and 
evening hours. The upper low is forecast to continue south into 
Oregon Friday offering a gradual drying and warming trend for 
western Washington Friday afternoon and Saturday. Another weak 
weather system moving into western Canada may bring some showers on 
Sunday with another threat by Tuesday. 


&& 


Short term...does it feel like fall? An upper low near 52n/127w 
over SW British Columbia has quite a cool unstable air mass with it. 
The soundings from Quillayute and port Hardy late today had freezing 
levels of 6100 and 5200 feet respectively. Satellite imagery and 
Doppler weather radar show a lot of showers rotating around the low 
and circulating into western Washington. 


With the Sun Down...the isolated thunderstorms this afternoon have 
died down. Yet as of 8 PM...there was quite a bit of lightning 
associated with a shower cluster off northern Vancouver Island 
heading southeast. Have seen this story before. Will include a 
threat of thunderstorms for the coastal waters and onshore to the 
beaches overnight into Thursday morning for the potential of 
nocturnal convection. 


The 00z forecasts continue the trend of sagging the upper low south over 
western Washington Thursday and into Oregon Friday thanks to the 
upstream building upper ridge near 155w this evening. So after 
another cool showery day with a continued threat of convection 
Thursday...should have a clearing trend on Friday into Saturday. 
Rest of the forecasts are on track. Buehner 


Long term...from previous discussion...northwest flow aloft develops over 
the region on Sunday and continues through Tuesday. The GFS and 
European model (ecmwf) have been pretty inconsistent with the timing and strength of 
the upper level shortwaves embedded in the northwest flow. The models agree 
that a weak shortwave trough will cross West Washington on Sunday...which is 
just enough to add a chance of showers to the forecast. 
However...confidence is still only moderate because the model 
agreement was just reached over the past 2-3 runs. For Monday and 
Tuesday confidence is low. The models have not reached any sort of 
consensus and each has been inconsistent from run-to-run. I will 
leave Labor Day dry...but keep the chance of showers Monday night 
through Tuesday night. It looks like an upper level ridge may be 
building around midweek so I went dry for Wednesday. Kam 


&& 


Aviation...an upper level trough continues to work south along the 
British Columbia coast this evening. There has been enough 
instability and moisture that in addition to scattered 
showers...isolated thunderstorms have occurred mainly near and over 
the mountains and are now ending. There is still a chance of 
thunderstorm overnight near the coast. VFR conditions with broken to 
scattered skies over much of the area this evening. Expect VFR 
conditions to prevail this evening with lower ceilings and gusty 
winds occurring with showers. Ceilings will lower overall into 
Thursday morning to MVFR levels. 


Ksea...VFR ceilings...except some MVFR with any showers. Abundant 
low level moisture will help ceilings lower to MVFR levels early 
Thursday morning. Winds will be briefly northerly before becoming 
variable and then back to southerly overnight. 


&& 


Marine...low level onshore flow continuing today with northwesterly 
westerly flow over the coastal waters. Showers over inland waters 
will keep winds gusty but below Small Craft Advisory criteria 
tonight. There is still a chance of thunderstorms overnight in the 
coastal waters. Low level onshore flow will weaken somewhat late 
tonight into Thursday...and again Thursday night into Friday as a 
weak surface low moves through the offshore waters. High pressure 
will build over the waters Friday into the weekend. 


&& 


Sew watches/warnings/advisories... 
Washington...none. 
Pz...Small Craft Advisory Grays Harbor bar. 


&& 


$$ 


Www.Weather.Gov/Seattle/ 


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



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