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Current conditions at
Boeing Field - King County International Airport (KBFI)
Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.
Overcast
45°F
7°C
| Humidity | 100% |
| Wind Speed | SSE 4 MPH |
| Barometer | 29.94 in (1013.89 mb) |
| Dewpoint | 45°F (7°C) |
| Visibility | 8.00 mi |
| Wind Chill | 43°F (6°C) |
| Last update | 11 Oct 04:20 AM PDT |
Extended Forecast for
Mercer Island WA
Today
High: 60 °F
Sunny
Tonight
Low: 44 °F
Clear
Columbus Day
High: 62 °F
Sunny
Monday Night
Low: 45 °F
Increasing
CloudsTuesday
High: 63 °F
Partly Sunny
Tuesday Night
Low: 51 °F
Mostly Cloudy
Wednesday
High: 65 °F
Mostly Cloudy
Wednesday Night
Low: 50 °F
Mostly Cloudy
Thursday
High: 68 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 60. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Tonight
Clear, with a low around 44. Light and variable wind.
Columbus Day
Sunny, with a high near 62. Calm wind.
Monday Night
Increasing clouds, with a low around 45. Calm wind.
Tuesday
Partly sunny, with a high near 63. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 51.
Wednesday
Mostly cloudy, with a high near 65.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 70.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 53.
Saturday
A chance of rain. Partly sunny, with a high near 64.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mercer Island WA
47.58°N 122.22°W (Elev. 118 ft)
47.58°N 122.22°W (Elev. 118 ft)
11:26 pm PDT Oct 10, 2026
4am PDT Oct 11, 2026-6pm PDT Oct 17, 2026
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