Showers and Thunderstorms for the East; Cooler Temperatures Return Sunday into Early Week

Showers and thunderstorms will accompany a cold front that will move across the eastern third of the country through Sunday. In the wake of this front, cooler temperatures will follow for most areas east of the Rockies. A wet pattern is expected to unfold across most of Florida this week with a persistent onshore flow and increase rip currents. For Hawaii, a return toward more rain the week ahead. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.

Clear

64°F

18°C

Humidity 48%
Wind Speed NW 8 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 05 Apr 03:00 PM PDT
Extended Forecast for

Mercer Island WA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 48. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 48 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 71. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. North northeast wind 3 to 7 mph.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 57. Light and variable wind.

    High: 57 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40. Light east northeast wind.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 48. North northwest wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 71. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 44. North northeast wind 3 to 7 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 57. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 40. Light east northeast wind.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 45.
Saturday
A slight chance of rain. Partly sunny, with a high near 59.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 44.
Sunday
A chance of rain. Mostly cloudy, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.6°N 122.22°W (Elev. 3 ft)
11:27 am PDT Apr 5, 2026
3pm PDT Apr 5, 2026-6pm PDT Apr 12, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database