Current conditions at
Boeing Field - King County International Airport (KBFI)
Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.
Clear
39°F
4°C
| Humidity | 86% |
| Wind Speed | N 0 MPH |
| Barometer | 30.3 in (1026.08 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 30 Dec 10:00 AM PST |
Extended Forecast for
Mercer Island WA
Today
High: 46 °F
Mostly Sunny
Tonight
Low: 35 °F
Partly Cloudy
Wednesday
High: 47 °F
Partly Sunny
Wednesday Night
Low: 36 °F
Partly Cloudy
New Year's Day
High: 49 °F
Slight Chance
RainThursday Night
Low: 42 °F
Chance Rain
Friday
High: 51 °F
Rain Likely
Friday Night
Low: 43 °F
Rain Likely
Saturday
High: 49 °F
Rain Likely
Detailed Forecast
Today
Mostly sunny, with a high near 46. Calm wind.
Tonight
Partly cloudy, with a low around 35. Calm wind.
Wednesday
Partly sunny, with a high near 47. Calm wind.
Wednesday Night
Partly cloudy, with a low around 36. Calm wind.
New Year's Day
A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 49. Light south southeast wind.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 42.
Friday
Rain likely. Mostly cloudy, with a high near 51. Chance of precipitation is 70%.
Friday Night
Rain likely. Mostly cloudy, with a low around 43.
Saturday
Rain likely. Mostly cloudy, with a high near 49.
Saturday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 42.
Sunday
A chance of rain. Mostly cloudy, with a high near 49.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 41.
Monday
A chance of rain. Mostly cloudy, with a high near 50.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mercer Island WA
47.6°N 122.22°W (Elev. 3 ft)
47.6°N 122.22°W (Elev. 3 ft)
7:01 am PST Dec 30, 2025
10am PST Dec 30, 2025-6pm PST Jan 5, 2026
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