Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Partly Cloudy

37°F

3°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 23 Jan 12:30 AM PST
Extended Forecast for

Mercer Island WA

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 36. Calm wind.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 46. North wind 3 to 6 mph.

    High: 46 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 31. North northeast wind around 5 mph becoming calm  in the evening.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 45. Calm wind.

    High: 45 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 46.

    High: 46 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 36. Calm wind.
Friday
Sunny, with a high near 46. North wind 3 to 6 mph.
Friday Night
Mostly clear, with a low around 31. North northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 45. Calm wind.
Saturday Night
Mostly clear, with a low around 31. Calm wind.
Sunday
Mostly sunny, with a high near 45.
Sunday Night
Mostly cloudy, with a low around 33.
Monday
Mostly cloudy, with a high near 46.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
Mostly cloudy, with a high near 50.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 42.
Wednesday
A chance of rain. Mostly cloudy, with a high near 51.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 43.
Thursday
A chance of rain. Mostly cloudy, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.58°N 122.25°W (Elev. 105 ft)
7:01 pm PST Jan 22, 2026
12am PST Jan 23, 2026-6pm PST Jan 29, 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