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

Boeing Field - King County International Airport (KBFI)

Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.

Clear

54°F

12°C

Humidity 89%
Wind Speed SSE 4 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 19 Sep 01:53 AM PDT
Extended Forecast for

4 Miles N Vashon WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Cloudy

  • Saturday

    Saturday: Cloudy, then gradual clearing during the afternoon, with a high near 66. Light and variable wind.

    High: 66 °F

    Clearing Late

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52. North northwest wind 3 to 7 mph.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 65. North wind 3 to 7 mph.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51. North wind 5 to 9 mph becoming light after midnight.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Monday Night

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

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

  • Tuesday Night

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

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 52. Calm wind.
Saturday
Cloudy, then gradual clearing during the afternoon, with a high near 66. Light and variable wind.
Saturday Night
Mostly clear, with a low around 52. North northwest wind 3 to 7 mph.
Sunday
Mostly sunny, with a high near 65. North wind 3 to 7 mph.
Sunday Night
Mostly clear, with a low around 51. North wind 5 to 9 mph becoming light after midnight.
Monday
Partly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Mostly cloudy, with a high near 63.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Mostly cloudy, with a high near 63.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
Mostly cloudy, with a high near 60.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 51.
Friday
Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Vashon WA
 47.5°N 122.45°W (Elev. 0 ft)
Last Update:
12:25 am PDT Sep 19, 2026
Forecast Valid:
2am PDT Sep 19, 2026-6pm PDT Sep 25, 2026
 
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Additional Resources

Radar & Satellite Image

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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