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

57°F

14°C

Humidity 74%
Wind Speed S 4 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 30 Sep 04:09 PM PDT
Extended Forecast for

Napavine WA

  • This Afternoon

    This Afternoon: Rain. Steady temperature around 59. South southeast wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Rain

  • Tonight

    Tonight: Rain and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm between 1am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 50. South wind 9 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Widespread dense fog, mainly before 7am. High near 65. South wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Showers and
    Dense Fog

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 49. South wind 10 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 5pm. Patchy fog before 10am. High near 62. South southeast wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.

    Low: 47 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers. Mostly cloudy, with a high near 65.

    High: 65 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers before 11am. Partly sunny, with a high near 64.

    High: 64 °F

    Slight Chance
    Showers then
    Mostly Sunny

Detailed Forecast

This Afternoon
Rain. Steady temperature around 59. South southeast wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm between 1am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 50. South wind 9 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm. Widespread dense fog, mainly before 7am. High near 65. South wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 49. South wind 10 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers, with thunderstorms also possible after 5pm. Patchy fog before 10am. High near 62. South southeast wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.
Friday
A 20 percent chance of showers. Mostly cloudy, with a high near 65.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 48.
Saturday
A slight chance of showers before 11am. Partly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Mostly sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 69.
Monday Night
Clear, with a low around 41.
Tuesday
Sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Napavine WA
 46.58°N 122.92°W (Elev. 400 ft)
Last Update:
2:25 pm PDT Sep 30, 2025
Forecast Valid:
5pm PDT Sep 30, 2025-6pm PDT Oct 7, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation