Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Clear

52°F

11°C

Humidity 71%
Wind Speed NNW 3 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 19 Apr 07:20 AM PDT
Extended Forecast for

Mercer Island WA

  • Today

    Today: Partly sunny, with a high near 72. Calm wind becoming north northwest 5 to 7 mph in the morning.

    High: 72 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 52. North northwest wind around 6 mph becoming calm.

    Low: 52 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 72. Northeast wind around 5 mph becoming light and variable.

    High: 72 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52. Light and variable wind becoming south 5 to 7 mph in the evening.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly after 11am.  Mostly cloudy, with a high near 63. Light and variable wind becoming west southwest around 5 mph in the afternoon.

    High: 63 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain.  Mostly cloudy, with a high near 57.

    High: 57 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 11pm.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 72. Calm wind becoming north northwest 5 to 7 mph in the morning.
Tonight
Partly cloudy, with a low around 52. North northwest wind around 6 mph becoming calm.
Monday
Mostly cloudy, with a high near 72. Northeast wind around 5 mph becoming light and variable.
Monday Night
Partly cloudy, with a low around 52. Light and variable wind becoming south 5 to 7 mph in the evening.
Tuesday
A 40 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 63. Light and variable wind becoming west southwest around 5 mph in the afternoon.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 52.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 57.
Wednesday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 49.
Thursday
Partly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 47.
Saturday
Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.58°N 122.25°W (Elev. 105 ft)
11:26 pm PDT Apr 18, 2026
7am PDT Apr 19, 2026-6pm PDT Apr 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database