Severe Weather for Northeast Southeastward into the Southern Plains; Flooding in the Upper Great Lakes

Severe thunderstorms are expected from the Northeast to Texas through the night 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 and the mid-Atlantic. There is late-season snow over the Northern/Central Rockies and the Northern Plains. Read More >

Current conditions at

CHEHALIS (CLSW1)

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

NA

53°F

12°C

Humidity 46%
Wind Speed W 3 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 16 Apr 07:09 PM PDT
Extended Forecast for

2 Miles ENE Napavine WA

Frost Advisory April 17, 01:00am until April 17, 09:00am
Click here for hazard details and duration
Frost Advisory
  • Tonight

    Tonight: Patchy frost after 2am.  Otherwise, increasing clouds, with a low around 34. West wind 5 to 8 mph becoming calm  in the evening. Winds could gust as high as 21 mph.

    Low: 34 °F

    Mostly Clear
    then Patchy
    Frost

  • Friday

    Friday: Increasing clouds, with a high near 58. Calm wind.

    High: 58 °F

    Increasing
    Clouds

  • 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 67. Light and variable wind.

    High: 67 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 11pm.  Mostly cloudy, with a low around 46. Light and variable wind.

    Low: 46 °F

    Chance Rain

  • Sunday

    Sunday: A 30 percent chance of rain, mainly before 11am.  Mostly cloudy, with a high near 70.

    High: 70 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 45.

    Low: 45 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of rain after 11am.  Partly sunny, with a high near 70.

    High: 70 °F

    Slight Chance
    Rain

  • Monday Night

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

    Low: 45 °F

    Chance Rain

Detailed Forecast

Tonight
Patchy frost after 2am. Otherwise, increasing clouds, with a low around 34. West wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 21 mph.
Friday
Increasing clouds, 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 67. Light and variable wind.
Saturday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 46. Light and variable wind.
Sunday
A 30 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 70.
Sunday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 45.
Monday
A slight chance of rain after 11am. Partly sunny, with a high near 70.
Monday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 45.
Tuesday
A chance of rain. Partly sunny, with a high near 63.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 46.
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 41.
Thursday
Partly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Napavine WA
 46.59°N 122.86°W (Elev. 400 ft)
11:27 am PDT Apr 16, 2026
7pm PDT Apr 16, 2026-6pm PDT Apr 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database