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

Tracking Areas of Fire Weather, Winter Weather, and Severe Weather Thursday

Continuation of gusty winds and low relative humidity will bring additional periods of critical fire weather to the southern Plains Thursday and Friday. Another Pacific storm will continue gusty winds and heavy snow over the western mountains into Thursday. Severe thunderstorms are possible across parts of the middle Mississippi into lower Ohio Valleys Thursday afternoon into early evening. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Mostly Cloudy

36°F

2°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 19 Feb 05:53 AM PST
Extended Forecast for

Mercer Island WA

  • Today

    Today: A slight chance of rain and snow showers between 8am and 1pm. Mostly cloudy, with a high near 41. North northwest wind 5 to 8 mph. Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Rain/Snow

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 27. Calm wind.

    Low: 27 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly cloudy, with a high near 45. Light south wind.

    High: 45 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A slight chance of rain showers before 10pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 36. Light east wind. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 36 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 51. East southeast wind 5 to 7 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 51 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely. Mostly cloudy, with a high near 54. Chance of precipitation is 70%.

    High: 54 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain. Cloudy, with a low around 42.

    Low: 42 °F

    Rain

  • Monday

    Monday: Rain. Cloudy, with a high near 52.

    High: 52 °F

    Rain

Detailed Forecast

Today
A slight chance of rain and snow showers between 8am and 1pm. Mostly cloudy, with a high near 41. North northwest wind 5 to 8 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 27. Calm wind.
Friday
Mostly cloudy, with a high near 45. Light south wind.
Friday Night
A slight chance of rain showers before 10pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 36. Light east wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
A chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 51. East southeast wind 5 to 7 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 41.
Sunday
Rain likely. Mostly cloudy, with a high near 54. Chance of precipitation is 70%.
Sunday Night
Rain. Cloudy, with a low around 42.
Monday
Rain. Cloudy, with a high near 52.
Monday Night
Rain. Mostly cloudy, with a low around 41.
Tuesday
Rain likely. Mostly cloudy, with a high near 52.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 40.
Wednesday
Rain likely. Mostly cloudy, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.6°N 122.22°W (Elev. 3 ft)
Last Update:
1:26 am PST Feb 19, 2026
Forecast Valid:
6am PST Feb 19, 2026-6pm PST Feb 25, 2026
 
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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