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

47°F

8°C

Humidity 92%
Wind Speed NNW 4 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 28 Nov 08:09 AM PST
Extended Forecast for

4 Miles ESE Napavine WA

  • Today

    Today: Patchy fog after 5pm. Otherwise, partly sunny, with a high near 52. Calm wind.

    High: 52 °F

    Mostly Sunny
    then Patchy
    Fog

  • Tonight

    Tonight: Patchy fog before 9pm. Otherwise, increasing clouds, with a low around 35. Calm wind.

    Low: 35 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday

    Saturday: A 10 percent chance of rain after 4pm. Mostly cloudy, with a high near 47. Calm wind.

    High: 47 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 46. Calm wind.

    High: 46 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 46.

    High: 46 °F

    Slight Chance
    Rain

  • Monday Night

    Monday Night: Rain likely, mainly before 4am. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Rain Likely

  • Tuesday

    Tuesday: A chance of rain, mainly before 10am. Mostly cloudy, with a high near 47.

    High: 47 °F

    Chance Rain

Detailed Forecast

Today
Patchy fog after 5pm. Otherwise, partly sunny, with a high near 52. Calm wind.
Tonight
Patchy fog before 9pm. Otherwise, increasing clouds, with a low around 35. Calm wind.
Saturday
A 10 percent chance of rain after 4pm. Mostly cloudy, with a high near 47. Calm wind.
Saturday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 32. Calm wind.
Sunday
Partly sunny, with a high near 46. Calm wind.
Sunday Night
Mostly cloudy, with a low around 33.
Monday
A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 46.
Monday Night
Rain likely, mainly before 4am. Mostly cloudy, with a low around 38.
Tuesday
A chance of rain, mainly before 10am. Mostly cloudy, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Mostly cloudy, with a high near 46.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Thursday
A chance of rain. Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Napavine WA
 46.55°N 122.82°W (Elev. 440 ft)
Last Update:
7:00 am PST Nov 28, 2025
Forecast Valid:
8am PST Nov 28, 2025-6pm PST Dec 4, 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