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

41°F

5°C

Humidity 89%
Wind Speed SE 0 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 15 Oct 10:09 PM PDT
Extended Forecast for

3 Miles SSW Napavine WA

  • Tonight

    Tonight: Areas of fog after 4am. Otherwise, clear, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Clear
    then Areas
    Fog

  • Thursday

    Thursday: Areas of fog before 10am. Otherwise, increasing clouds, with a high near 58. Calm wind.

    High: 58 °F

    Areas Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Rain likely, mainly after 11pm. Mostly cloudy, with a low around 46. Light and variable wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Rain Likely

  • Friday

    Friday: A 30 percent chance of rain before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 61. Light and variable wind becoming west around 6 mph in the afternoon.

    High: 61 °F

    Chance Rain
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. West northwest wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of rain after 11am. Mostly cloudy, with a high near 61.

    High: 61 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain. Low around 45. Chance of precipitation is 100%.

    Low: 45 °F

    Rain

  • Sunday

    Sunday: Rain before 11am, then showers after 11am. Cloudy, with a high near 56.

    High: 56 °F

    Rain

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Showers

Detailed Forecast

Tonight
Areas of fog after 4am. Otherwise, clear, with a low around 35. Calm wind.
Thursday
Areas of fog before 10am. Otherwise, increasing clouds, with a high near 58. Calm wind.
Thursday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 46. Light and variable wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 30 percent chance of rain before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 61. Light and variable wind becoming west around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 39. West northwest wind around 5 mph becoming calm in the evening.
Saturday
A 40 percent chance of rain after 11am. Mostly cloudy, with a high near 61.
Saturday Night
Rain. Low around 45. Chance of precipitation is 100%.
Sunday
Rain before 11am, then showers after 11am. Cloudy, with a high near 56.
Sunday Night
Showers and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 42.
Monday
A chance of showers, mainly before 11am. Partly sunny, with a high near 58.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 41.
Tuesday
A chance of rain. Mostly cloudy, with a high near 57.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 43.
Wednesday
A chance of rain. Mostly cloudy, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Napavine WA
 46.53°N 122.94°W (Elev. 400 ft)
Last Update:
8:00 pm PDT Oct 15, 2025
Forecast Valid:
10pm PDT Oct 15, 2025-6pm PDT Oct 22, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation