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

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Current conditions at

CHEHALIS (CLSW1)

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

NA

49°F

9°C

Humidity 74%
Wind Speed SE 4 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Wind Chill48°F (9°C)
Last update 12 Jan 09:09 AM PST
Extended Forecast for

3 Miles N Napavine WA

  • Today

    Today: A 30 percent chance of rain, mainly after 3pm. Mostly cloudy, with a high near 53. South wind 3 to 5 mph.

    High: 53 °F

    Chance Rain

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy dense fog before noon. Otherwise, partly sunny, with a high near 55. Calm wind.

    High: 55 °F

    Patchy Dense
    Fog then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy dense fog before noon. Otherwise, partly sunny, with a high near 50. Calm wind.

    High: 50 °F

    Patchy Dense
    Fog then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog before 10pm. Otherwise, mostly cloudy, with a low around 41.

    Low: 41 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of rain, mainly after 3pm. Mostly cloudy, with a high near 53. South wind 3 to 5 mph.
Tonight
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 42. Calm wind.
Tuesday
Patchy dense fog before noon. Otherwise, partly sunny, with a high near 55. Calm wind.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 38. Calm wind.
Wednesday
Patchy dense fog before noon. Otherwise, partly sunny, with a high near 50. Calm wind.
Wednesday Night
Patchy fog before 10pm. Otherwise, mostly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 35.
Friday
Sunny, with a high near 52.
Friday Night
Patchy fog between 11pm and midnight. Otherwise, mostly clear, with a low around 34.
Saturday
Sunny, with a high near 52.
Saturday Night
Patchy fog. Otherwise, mostly clear, with a low around 34.
Sunday
Sunny, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Napavine WA
 46.62°N 122.91°W (Elev. 400 ft)
Last Update:
7:00 am PST Jan 12, 2026
Forecast Valid:
9am PST Jan 12, 2026-6pm PST Jan 18, 2026
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation