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.

Clear

68°F

20°C

Humidity 56%
Wind Speed N 0 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 08 Oct 05:35 PM PDT
Extended Forecast for

2 Miles N Mercer Island WA

  • Tonight

    Tonight: Increasing clouds, with a low around 55. Calm wind becoming south 5 to 8 mph after midnight.

    Low: 55 °F

    Increasing
    Clouds

  • Friday

    Friday: Rain, mainly before 1pm. High near 63. South southwest wind 6 to 11 mph becoming light and variable in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Rain then
    Rain Likely

  • Friday Night

    Friday Night: A chance of rain before 1am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 49. Light and variable wind becoming south southeast around 6 mph in the evening. Chance of precipitation is 50%.

    Low: 49 °F

    Chance Rain
    then Slight
    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 11am. Partly sunny, with a high near 60. South wind around 5 mph becoming calm.

    High: 60 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. North wind 5 to 7 mph becoming calm in the evening.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 44.

    Low: 44 °F

    Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 55. Calm wind becoming south 5 to 8 mph after midnight.
Friday
Rain, mainly before 1pm. High near 63. South southwest wind 6 to 11 mph becoming light and variable in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of rain before 1am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 49. Light and variable wind becoming south southeast around 6 mph in the evening. Chance of precipitation is 50%.
Saturday
A 20 percent chance of rain before 11am. Partly sunny, with a high near 60. South wind around 5 mph becoming calm.
Saturday Night
Mostly clear, with a low around 46. North wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 62.
Sunday Night
Clear, with a low around 44.
Columbus Day
Sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
A chance of rain, mainly after 11am. Partly sunny, with a high near 63.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 50.
Wednesday
A slight chance of rain. Partly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Mercer Island WA
 47.6°N 122.22°W (Elev. 3 ft)
Last Update:
12:25 pm PDT Oct 8, 2026
Forecast Valid:
5pm PDT Oct 8, 2026-6pm PDT Oct 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation