National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

Lat: 47.44472°NLon: 122.31361°WElev: 427.0ft.

Clear

54°F

12°C

Humidity 93%
Wind Speed NE 9 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 20 Sep 08:05 AM PDT
Extended Forecast for

Vashon WA

  • Today

    Today: Mostly sunny, with a high near 64. North wind 3 to 8 mph.

    High: 64 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 51. North wind 3 to 8 mph.

    Low: 51 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 64. Light north wind.

    High: 64 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Increasing clouds, with a low around 53. North northeast wind around 6 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 62. Light and variable wind becoming south southwest around 6 mph in the afternoon.

    High: 62 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 64. North wind 3 to 8 mph.
Tonight
Increasing clouds, with a low around 51. North wind 3 to 8 mph.
Monday
Mostly cloudy, with a high near 64. Light north wind.
Monday Night
Increasing clouds, with a low around 53. North northeast wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 62. Light and variable wind becoming south southwest around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Mostly cloudy, with a high near 61.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
Mostly cloudy, with a high near 59.
Thursday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 50.
Friday
A chance of rain. Mostly cloudy, with a high near 57.
Friday Night
A chance of rain. Mostly cloudy, with a low around 48.
Saturday
Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Vashon WA
 47.46°N 122.43°W (Elev. 82 ft)
Last Update:
12:25 am PDT Sep 20, 2026
Forecast Valid:
8am PDT Sep 20, 2026-6pm PDT Sep 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation