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Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

Lat: 47.49509°NLon: 122.21437°WElev: 23.0ft.

Overcast

43°F

6°C

Humidity 81%
Wind Speed N 0 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 15 Apr 05:00 AM PDT
Extended Forecast for

Sammamish WA

  • Today

    Today: Rain and snow likely before 3pm, then rain showers between 3pm and 5pm, then rain likely after 5pm. Some thunder is also possible. High near 49. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 49 °F

    Chance
    Rain/Snow
    then Showers

  • Tonight

    Tonight: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 34. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Rain Likely
    then Mostly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 55. Light and variable wind.

    High: 55 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 39. Light and variable wind.

    Low: 39 °F

    Mostly Cloudy

  • Friday

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

    High: 57 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of rain. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain. Mostly cloudy, with a high near 66.

    High: 66 °F

    Chance Rain

Detailed Forecast

Today
Rain and snow likely before 3pm, then rain showers between 3pm and 5pm, then rain likely after 5pm. Some thunder is also possible. High near 49. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tonight
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 34. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 55. Light and variable wind.
Thursday Night
Mostly cloudy, with a low around 39. Light and variable wind.
Friday
Partly sunny, with a high near 57. Calm wind.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
Mostly cloudy, with a high near 65.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 46.
Sunday
A chance of rain. Mostly cloudy, with a high near 66.
Sunday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 45.
Monday
A chance of rain. Partly sunny, with a high near 67.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 46.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sammamish WA
 47.6°N 122.03°W (Elev. 463 ft)
Last Update:
1:16 am PDT Apr 15, 2026
Forecast Valid:
5am PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation