Current conditions at
Boeing Field - King County International Airport (KBFI)
Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.
Clear
43°F
6°C
| Humidity | 70% |
| Wind Speed | N 0 MPH |
| Barometer | 30.53 in (1033.86 mb) |
| Dewpoint | 34°F (1°C) |
| Visibility | 10.00 mi |
| Last update | 29 Dec 12:20 PM PST |
Extended Forecast for
Mercer Island WA
This Afternoon
High: 45 °F
Mostly Cloudy
Tonight
Low: 35 °F
Mostly Cloudy
Tuesday
High: 47 °F
Partly Sunny
Tuesday Night
Low: 36 °F
Mostly Cloudy
Wednesday
High: 49 °F
Mostly Sunny
Wednesday Night
Low: 37 °F
Mostly Cloudy
New Year's Day
High: 49 °F
Mostly Cloudy
Thursday Night
Low: 42 °F
Chance Rain
Friday
High: 51 °F
Rain Likely
Detailed Forecast
This Afternoon
Mostly cloudy, with a high near 45. Calm wind.
Tonight
Mostly cloudy, with a low around 35. Calm wind.
Tuesday
Partly sunny, with a high near 47. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 36. Calm wind.
Wednesday
Mostly sunny, with a high near 49. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 37.
New Year's Day
Mostly cloudy, with a high near 49.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 42.
Friday
Rain likely. Mostly cloudy, with a high near 51.
Friday Night
A chance of rain. Mostly cloudy, with a low around 41.
Saturday
A chance of rain. Mostly cloudy, with a high near 49.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 41.
Sunday
A chance of rain. Mostly cloudy, with a high near 49.
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 29, 2025
12pm PST Dec 29, 2025-6pm PST Jan 4, 2026
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