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.

Overcast

52°F

11°C

Humidity 76%
Wind Speed SSE 6 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 21 Nov 11:20 PM PST
Extended Forecast for

2 Miles NW Mercer Island WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. South wind around 6 mph.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain before 10am, then a chance of rain after 11am. Mostly cloudy, with a high near 55. South wind around 6 mph. Chance of precipitation is 30%.

    High: 55 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain, mainly after 10pm. Low around 49. South wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Rain

  • Sunday

    Sunday: Rain. High near 51. South southwest wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 51 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely. Mostly cloudy, with a low around 41. South wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 10am. Partly sunny, with a high near 48. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Rain Likely
    then Chance
    Rain

  • Monday Night

    Monday Night: A slight chance of rain before 10pm, then a slight chance of rain after 4am. Mostly cloudy, with a low around 40. Chance of precipitation is 20%.

    Low: 40 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain, mainly after 10am. Mostly cloudy, with a high near 46.

    High: 46 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain likely. Cloudy, with a low around 43.

    Low: 43 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 50. South wind around 6 mph.
Saturday
A slight chance of rain before 10am, then a chance of rain after 11am. Mostly cloudy, with a high near 55. South wind around 6 mph. Chance of precipitation is 30%.
Saturday Night
Rain, mainly after 10pm. Low around 49. South wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain. High near 51. South southwest wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain likely. Mostly cloudy, with a low around 41. South wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely, mainly before 10am. Partly sunny, with a high near 48. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A slight chance of rain before 10pm, then a slight chance of rain after 4am. Mostly cloudy, with a low around 40. Chance of precipitation is 20%.
Tuesday
A chance of rain, mainly after 10am. Mostly cloudy, with a high near 46.
Tuesday Night
Rain likely. Cloudy, with a low around 43.
Wednesday
Rain likely. Cloudy, with a high near 50.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 47.
Thanksgiving Day
A chance of rain. Mostly cloudy, with a high near 52.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 46.
Friday
Rain likely. Mostly cloudy, with a high near 51.
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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:
7:01 pm PST Nov 21, 2025
Forecast Valid:
11pm PST Nov 21, 2025-6pm PST Nov 28, 2025
 
Forecast Discussion
 
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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