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.

Partly Cloudy

53°F

12°C

Humidity 92%
Wind Speed S 3 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 19 Sep 03:53 AM PDT
Extended Forecast for

4 Miles SW Vashon WA

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 70. Calm wind.

    High: 70 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Increasing clouds, with a low around 52. Light north wind.

    Low: 52 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 70. Calm wind becoming north around 5 mph in the afternoon.

    High: 70 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51. North wind 5 to 7 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 69. Calm wind.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 70. Calm wind.
Tonight
Increasing clouds, with a low around 52. Light north wind.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 70. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 51. North wind 5 to 7 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 69. Calm wind.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Partly sunny, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Partly sunny, with a high near 65.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Mostly cloudy, with a high near 61.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 50.
Friday
Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Vashon WA
 47.41°N 122.51°W (Elev. 194 ft)
Last Update:
12:25 am PDT Sep 19, 2026
Forecast Valid:
4am PDT Sep 19, 2026-6pm PDT Sep 25, 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