
Flash Flooding Continuing Along the Gulf Coast; Dry Thunderstorms in the West
Excessive rainfall continues to produce life-threatening, locally catastrophic flash flooding along the central Gulf Coast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts Oregon, California, and the Great Basin into the weekend. Read More >
Current conditions at
Boeing Field - King County International Airport (KBFI)
Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.
Clear
82°F
28°C
| Humidity | 32% |
| Wind Speed | N 0 MPH |
| Barometer | 29.8 in (1009.14 mb) |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Heat Index | 81°F (27°C) |
| Last update | 19 Jun 05:35 PM PDT |
Extended Forecast for
Mercer Island WA
Tonight

Low: 56 °F
Mostly Clear
Saturday

High: 74 °F
Mostly Sunny
Saturday Night

Low: 55 °F
Partly Cloudy
Sunday

High: 78 °F
Sunny
Sunday Night

Low: 57 °F
Mostly Clear
Monday

High: 84 °F
Sunny
Monday Night

Low: 61 °F
Mostly Clear
Tuesday

High: 88 °F
Mostly Sunny
Tuesday Night

Low: 62 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 56. Light and variable wind becoming south 5 to 8 mph after midnight.
Saturday
Mostly sunny, with a high near 74. South wind 5 to 9 mph.
Saturday Night
Partly cloudy, with a low around 55. South wind 6 to 8 mph.
Sunday
Sunny, with a high near 78. South wind around 5 mph becoming calm.
Sunday Night
Mostly clear, with a low around 57. North northwest wind 5 to 8 mph becoming calm in the evening.
Monday
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 57.
Friday
A chance of rain. Partly sunny, with a high near 73.
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)
1:23 pm PDT Jun 19, 2026
5pm PDT Jun 19, 2026-6pm PDT Jun 26, 2026


