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Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Current conditions at

SEATTLE WEATHER FORECAST OFFICE (SEAW1)

Lat: 47.68528°NLon: 122.25111°WElev: 29.0ft.

NA

51°F

11°C

Humidity 57%
Wind Speed ENE 5 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 36°F (2°C)
Visibility NA
Last update 16 Apr 02:30 PM PDT
Extended Forecast for

4 Miles W Sammamish WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. South wind around 5 mph becoming calm after midnight.

    Low: 38 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 57. Calm wind.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 68. Calm wind.

    High: 68 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 70.

    High: 70 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of rain. Partly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. South wind around 5 mph becoming calm after midnight.
Friday
Mostly sunny, with a high near 57. Calm wind.
Friday Night
Mostly cloudy, with a low around 40. Calm wind.
Saturday
Partly sunny, with a high near 68. Calm wind.
Saturday Night
Mostly cloudy, with a low around 48. Calm wind.
Sunday
Mostly cloudy, with a high near 70.
Sunday Night
Mostly cloudy, with a low around 48.
Monday
Partly sunny, with a high near 71.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 49.
Tuesday
A chance of rain. Partly sunny, with a high near 64.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 49.
Wednesday
A chance of rain. Mostly cloudy, with a high near 60.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 45.
Thursday
Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Sammamish WA
 47.62°N 122.1°W (Elev. 200 ft)
Last Update:
11:27 am PDT Apr 16, 2026
Forecast Valid:
3pm PDT Apr 16, 2026-6pm PDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation