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

Boeing Field - King County International Airport (KBFI)

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

Partly Cloudy

67°F

19°C

Humidity 54%
Wind Speed S 17 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 01 Oct 03:53 PM PDT
Extended Forecast for

2 Miles NW Mercer Island WA

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm before 5pm, then a chance of showers and thunderstorms after 5pm. High near 66. South wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers

  • Tonight

    Tonight: Showers likely, mainly before 10pm. Mostly cloudy, with a low around 55. South southeast wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 10am, then a chance of showers after 11am. Partly sunny, with a high near 67. South southwest wind 6 to 8 mph. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 52. Light south southeast wind.

    Low: 52 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers after 11am. Partly sunny, with a high near 65. Light and variable wind becoming southwest around 5 mph in the afternoon.

    High: 65 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers. Partly sunny, with a high near 62.

    High: 62 °F

    Slight Chance
    Showers

  • Saturday Night

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

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm before 5pm, then a chance of showers and thunderstorms after 5pm. High near 66. South wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 55. South southeast wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of showers before 10am, then a chance of showers after 11am. Partly sunny, with a high near 67. South southwest wind 6 to 8 mph. Chance of precipitation is 40%.
Thursday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 52. Light south southeast wind.
Friday
A 20 percent chance of showers after 11am. Partly sunny, with a high near 65. Light and variable wind becoming southwest around 5 mph in the afternoon.
Friday Night
A 30 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 54.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 64.
Sunday Night
Clear, with a low around 49.
Monday
Sunny, with a high near 67.
Monday Night
Clear, with a low around 49.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Mercer Island WA
 47.6°N 122.25°W (Elev. 3 ft)
Last Update:
2:25 pm PDT Oct 1, 2025
Forecast Valid:
4pm PDT Oct 1, 2025-6pm PDT Oct 8, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation