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

Dangerous Cold and Gusty Winds Anticipated This Weekend

A significant arctic outbreak will bring frigid temperatures and dangerously cold wind chills to the Northeast and Mid-Atlantic this weekend. Strong winds which could produce tree damage and power outages, and periods of snow squalls are also possible. Relief from this cold and a warming trend is forecast to commence by the beginning to middle of next week. Read More >

Hazardous Weather Conditions

Current conditions at

CHEHALIS (CLSW1)

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

NA

41°F

5°C

Humidity 100%
Wind Speed NE 0 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 05 Feb 05:09 AM PST
Extended Forecast for

3 Miles SSW Napavine WA

Dense Fog Advisory until February 5, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until February 5, 09:00am

    NOW until 9:00am Thu

    Dense Fog Advisory

  • Overnight

    Low: 37 °F

    Fog

  • Thursday

    Thursday: Widespread fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 57. Calm wind.

    High: 57 °F

    Fog then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 57. Light south wind.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Rain likely, mainly after 4am. Mostly cloudy, with a low around 40. Light south wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Slight Chance
    Rain then
    Rain Likely

  • Saturday

    Saturday: Rain. High near 50. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 45. Chance of precipitation is 90%.

    Low: 45 °F

    Rain

  • Sunday

    Sunday: Rain. Cloudy, with a high near 50.

    High: 50 °F

    Rain

Detailed Forecast

Overnight
Widespread fog. Otherwise, mostly cloudy, with a low around 37. Calm wind.
Thursday
Widespread fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 57. Calm wind.
Thursday Night
Mostly clear, with a low around 37. Calm wind.
Friday
Mostly sunny, with a high near 57. Light south wind.
Friday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 40. Light south wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. High near 50. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain. Low around 45. Chance of precipitation is 90%.
Sunday
Rain. Cloudy, with a high near 50.
Sunday Night
Rain. Cloudy, with a low around 39.
Monday
Rain. Cloudy, with a high near 47.
Monday Night
Rain likely. Mostly cloudy, with a low around 36.
Tuesday
A chance of rain. Mostly cloudy, with a high near 46.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 33.
Wednesday
A chance of rain. Mostly cloudy, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Napavine WA
 46.53°N 122.94°W (Elev. 400 ft)
Last Update:
1:26 am PST Feb 5, 2026
Forecast Valid:
5am PST Feb 5, 2026-6pm PST Feb 11, 2026
 
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