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Current conditions at
Boeing Field - King County International Airport (KBFI)
Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.
Partly Cloudy
66°F
19°C
| Humidity | 68% |
| Wind Speed | W 4 MPH |
| Barometer | 30.14 in (1020.66 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 8.00 mi |
| Last update | 05 Oct 02:15 PM PDT |
Extended Forecast for
Mercer Island WA
This Afternoon
High: 69 °F
Partly Sunny
Tonight
Low: 54 °F
Partly Cloudy
Tuesday
High: 68 °F
Decreasing
CloudsTuesday Night
Low: 52 °F
Increasing
CloudsWednesday
High: 69 °F
Mostly Sunny
Wednesday Night
Low: 52 °F
Mostly Clear
Thursday
High: 72 °F
Sunny
Thursday Night
Low: 53 °F
Partly Cloudy
Friday
High: 67 °F
Slight Chance
Rain
Detailed Forecast
This Afternoon
Partly sunny, with a high near 69. Calm wind.
Tonight
Partly cloudy, with a low around 54. Calm wind.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 68. Calm wind becoming north northwest around 5 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 52. North northeast wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 69. North wind 3 to 6 mph.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 53.
Friday
A slight chance of rain after 11am. Partly sunny, with a high near 67.
Friday Night
A chance of rain. Mostly cloudy, with a low around 51.
Saturday
A chance of rain. Mostly cloudy, with a high near 62.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Mostly sunny, with a high near 63.
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 am PDT Oct 5, 2026
2pm PDT Oct 5, 2026-6pm PDT Oct 11, 2026
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