National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

CHEHALIS (CLSW1)

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

NA

37°F

3°C

Humidity 100%
Wind Speed SE 0 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 17 Nov 11:09 PM PST
Extended Forecast for

Napavine WA

  • Tonight

    Tonight: A 30 percent chance of showers after 4am. Increasing clouds, with a steady temperature around 40. Calm wind.

    Low: 40 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 49. Calm wind.

    High: 49 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, partly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 51. Calm wind.

    High: 51 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Cloudy, with a low around 38. Calm wind becoming southeast around 5 mph.

    Low: 38 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 52.

    High: 52 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly before 10pm. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 51.

    High: 51 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 30 percent chance of showers after 4am. Increasing clouds, with a steady temperature around 40. Calm wind.
Tuesday
A 30 percent chance of showers, mainly after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 49. Calm wind.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 33. Calm wind.
Wednesday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 51. Calm wind.
Wednesday Night
A 50 percent chance of showers. Cloudy, with a low around 38. Calm wind becoming southeast around 5 mph.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 52.
Thursday Night
A 30 percent chance of showers, mainly before 10pm. Mostly cloudy, with a low around 38.
Friday
A chance of showers. Mostly cloudy, with a high near 51.
Friday Night
A chance of showers. Mostly cloudy, with a low around 41.
Saturday
Showers likely. Mostly cloudy, with a high near 52.
Saturday Night
Showers likely. Mostly cloudy, with a low around 41.
Sunday
Showers likely. Mostly cloudy, with a high near 51.
Sunday Night
Rain likely. Mostly cloudy, with a low around 40.
Monday
Rain likely. Mostly cloudy, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napavine WA
 46.58°N 122.92°W (Elev. 400 ft)
Last Update:
7:01 pm PST Nov 17, 2025
Forecast Valid:
11pm PST Nov 17, 2025-6pm PST Nov 24, 2025
 
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