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Hazardous Weather Conditions

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Overcast

62°F

17°C

Humidity 77%
Wind Speed WNW 8 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 01 Nov 12:53 PM PDT
Extended Forecast for

Mercer Island WA

Flood Watch until November 2, 04:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until November 2, 04:00am

    NOW until 4:00am Sun

    Flood Watch

  • This Afternoon

    High: 60 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers likely. Mostly cloudy, with a low around 47. South southwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers before 11am. Partly sunny, with a high near 55. South wind 6 to 9 mph.

    High: 55 °F

    Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 45. Calm wind becoming north northeast around 6 mph after midnight.

    Low: 45 °F

    Increasing
    Clouds

  • Monday

    Monday: A 40 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 53. North northeast wind around 6 mph becoming south in the afternoon.

    High: 53 °F

    Chance Rain

  • Monday Night

    Monday Night: Rain likely, mainly after 11pm. Mostly cloudy, with a low around 47. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Rain Likely

  • Tuesday

    Tuesday: A 50 percent chance of rain. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly after 11pm. Cloudy, with a low around 52.

    Low: 52 °F

    Rain

Detailed Forecast

This Afternoon
Showers likely, mainly after 5pm. Mostly cloudy, with a high near 60. South southwest wind 13 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers likely. Mostly cloudy, with a low around 47. South southwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 30 percent chance of showers before 11am. Partly sunny, with a high near 55. South wind 6 to 9 mph.
Sunday Night
Increasing clouds, with a low around 45. Calm wind becoming north northeast around 6 mph after midnight.
Monday
A 40 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 53. North northeast wind around 6 mph becoming south in the afternoon.
Monday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 47. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 56.
Tuesday Night
Rain, mainly after 11pm. Cloudy, with a low around 52.
Wednesday
Rain. Cloudy, with a high near 58.
Wednesday Night
Rain. Cloudy, with a low around 52.
Thursday
Rain. Cloudy, with a high near 56.
Thursday Night
Rain. Cloudy, with a low around 50.
Friday
Rain. Cloudy, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.58°N 122.25°W (Elev. 105 ft)
Last Update:
8:00 am PDT Nov 1, 2025
Forecast Valid:
1pm PDT Nov 1, 2025-6pm PST Nov 7, 2025
 
Forecast Discussion
 
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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