
Tracking Winter Weather and Frigid Temperatures Through This Weekend
A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >
Current conditions at
Boeing Field - King County International Airport (KBFI)
Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.
Clear
54°F
12°C
| Humidity | 50% |
| Wind Speed | N 0 MPH |
| Barometer | 30.38 in (1028.79 mb) |
| Dewpoint | 35°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 16 Jan 04:20 PM PST |
Extended Forecast for
Mercer Island WA
Tonight

Low: 40 °F
Mostly Clear
Saturday

High: 53 °F
Sunny
Saturday Night

Low: 38 °F
Mostly Clear
Sunday

High: 51 °F
Sunny
Sunday Night

Low: 38 °F
Mostly Clear
M.L.King Day

High: 51 °F
Sunny
Monday Night

Low: 38 °F
Partly Cloudy
Tuesday

High: 48 °F
Partly Sunny
Tuesday Night

Low: 39 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 40. North northeast wind 3 to 5 mph.
Saturday
Sunny, with a high near 53. Light north northeast wind.
Saturday Night
Mostly clear, with a low around 38. Calm wind.
Sunday
Sunny, with a high near 51. Calm wind.
Sunday Night
Mostly clear, with a low around 38. Calm wind.
M.L.King Day
Sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 40.
Thursday
A slight chance of rain and snow. Partly sunny, with a high near 47.
Thursday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 39.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 45.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Mercer Island WA
47.58°N 122.25°W (Elev. 105 ft)
47.58°N 122.25°W (Elev. 105 ft)
1:26 pm PST Jan 16, 2026
4pm PST Jan 16, 2026-6pm PST Jan 23, 2026


