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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 >

Hazardous Weather Conditions

Current conditions at

CHEHALIS (CLSW1)

Lat: 46.61°NLon: 122.90833°WElev: 262.0ft.

NA

33°F

1°C

Humidity 100%
Wind Speed SE 0 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 16 Apr 06:09 AM PDT
Extended Forecast for

6 Miles SE Napavine WA

Freeze Warning until April 16, 09:00am
Click here for hazard details and duration
...
  •  
    Freeze Warning until April 16, 09:00am

    NOW until 9:00am Thu

    Freeze Warning

  • Today

    High: 55 °F

    Frost then
    Mostly Sunny

  • Tonight

    Tonight: Patchy frost after 2am. Otherwise, increasing clouds, with a low around 33. West wind around 6 mph becoming calm in the evening.

    Low: 33 °F

    Mostly Clear
    then Patchy
    Frost

  • Friday

    Friday: Partly sunny, with a high near 58. Calm wind.

    High: 58 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 66. Calm wind.

    High: 66 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

  • Sunday

    Sunday: A 40 percent chance of rain. Mostly cloudy, with a high near 66.

    High: 66 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

Detailed Forecast

Today
Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 55. Calm wind becoming west 5 to 7 mph in the afternoon.
Tonight
Patchy frost after 2am. Otherwise, increasing clouds, with a low around 33. West wind around 6 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 58. Calm wind.
Friday Night
Mostly cloudy, with a low around 37. Calm wind.
Saturday
Mostly cloudy, with a high near 66. Calm wind.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 46.
Sunday
A 40 percent 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, mainly after 11am. Mostly cloudy, with a high near 68.
Monday Night
A chance of rain. Mostly cloudy, with a low around 45.
Tuesday
A chance of rain. Mostly cloudy, with a high near 59.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 44.
Wednesday
A chance of rain. Mostly cloudy, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Napavine WA
 46.53°N 122.81°W (Elev. 417 ft)
Last Update:
1:20 am PDT Apr 16, 2026
Forecast Valid:
6am PDT Apr 16, 2026-6pm PDT Apr 22, 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