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

45°F

7°C

Humidity 100%
Wind Speed WNW 2 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 02 Jan 08:09 PM PST
Extended Forecast for

Napavine WA

  • Tonight

    Tonight: Rain. Low around 42. Calm wind becoming east southeast around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Mostly Cloudy
    then Rain

  • Saturday

    Saturday: Rain before 10am, then rain likely after 1pm. High near 51. South wind 8 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Steady temperature around 46. South wind 13 to 17 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Rain

  • Sunday

    Sunday: Rain. High near 48. South wind 8 to 17 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Low around 36. South wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Rain

  • Monday

    Monday: A 50 percent chance of rain before 4pm. Partly sunny, with a high near 45.

    High: 45 °F

    Chance Rain

  • Monday Night

    Monday Night: Rain likely, mainly after 4am. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.

    Low: 34 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain. Cloudy, with a high near 41.

    High: 41 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Cloudy, with a low around 35.

    Low: 35 °F

    Rain

Detailed Forecast

Tonight
Rain. Low around 42. Calm wind becoming east southeast around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain before 10am, then rain likely after 1pm. High near 51. South wind 8 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain. Steady temperature around 46. South wind 13 to 17 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 48. South wind 8 to 17 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain. Low around 36. South wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 50 percent chance of rain before 4pm. Partly sunny, with a high near 45.
Monday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Tuesday
Rain. Cloudy, with a high near 41.
Tuesday Night
Rain. Cloudy, with a low around 35.
Wednesday
Rain. Cloudy, with a high near 43.
Wednesday Night
Rain. Mostly cloudy, with a low around 33.
Thursday
A chance of rain. Mostly cloudy, with a high near 43.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 34.
Friday
A slight chance of rain and snow. Mostly cloudy, with a high near 45.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Napavine WA
 46.58°N 122.92°W (Elev. 400 ft)
Last Update:
7:01 pm PST Jan 2, 2026
Forecast Valid:
8pm PST Jan 2, 2026-6pm PST Jan 9, 2026
 
Forecast Discussion
 
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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