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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

SEATTLE WEATHER FORECAST OFFICE (SEAW1)

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

NA

44°F

7°C

Humidity 92%
Wind Speed N 3 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 42°F (6°C)
Visibility NA
Last update 18 Apr 06:30 AM PDT
Extended Forecast for

3 Miles WNW Sammamish WA

  • Today

    Today: Mostly sunny, with a high near 68. Light and variable wind.

    High: 68 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 46. Light and variable wind.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 73. Light northeast wind.

    High: 73 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 49. North northwest wind around 6 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 73. Calm wind becoming west around 5 mph in the afternoon.

    High: 73 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 67.

    High: 67 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain likely. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain likely, mainly before 11am. Cloudy, with a high near 56.

    High: 56 °F

    Rain Likely

Detailed Forecast

Today
Mostly sunny, with a high near 68. Light and variable wind.
Tonight
Partly cloudy, with a low around 46. Light and variable wind.
Sunday
Mostly cloudy, with a high near 73. Light northeast wind.
Sunday Night
Mostly cloudy, with a low around 49. North northwest wind around 6 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 73. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
A 40 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 67.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 49.
Wednesday
Rain likely, mainly before 11am. Cloudy, with a high near 56.
Wednesday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 46.
Thursday
A slight chance of rain. Mostly cloudy, with a high near 61.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Sammamish WA
 47.62°N 122.1°W (Elev. 200 ft)
Last Update:
11:26 pm PDT Apr 17, 2026
Forecast Valid:
6am PDT Apr 18, 2026-6pm PDT Apr 24, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation