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

Chehalis-Centralia Airport (KCLS)

Lat: 46.677°NLon: 122.9827°WElev: 177.0ft.

NA

39°F

4°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 01 Dec 11:15 AM PST
Extended Forecast for

Chehalis WA

  • Today

    Today: Patchy fog before noon. Otherwise, partly sunny, with a high near 45. Calm wind.

    High: 45 °F

    Patchy Fog

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 10pm. Cloudy, with a low around 39. Light south wind.

    Low: 39 °F

    Chance Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly before 11am. Patchy fog after 2pm. Otherwise, mostly cloudy, with a high near 47. Calm wind.

    High: 47 °F

    Chance Rain
    and Patchy
    Fog

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog. Otherwise, cloudy, with a high near 45. Calm wind.

    High: 45 °F

    Areas Fog

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 4am. Areas of fog. Otherwise, mostly cloudy, with a low around 36.

    Low: 36 °F

    Areas Fog
    then Chance
    Rain and
    Areas Fog

  • Thursday

    Thursday: Rain, mainly after 10am. Patchy fog before 7am. High near 46. Chance of precipitation is 80%.

    High: 46 °F

    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: Rain. Cloudy, with a low around 42.

    Low: 42 °F

    Rain

  • Friday

    Friday: Rain. Cloudy, with a high near 52.

    High: 52 °F

    Rain

Detailed Forecast

Today
Patchy fog before noon. Otherwise, partly sunny, with a high near 45. Calm wind.
Tonight
A 50 percent chance of rain, mainly after 10pm. Cloudy, with a low around 39. Light south wind.
Tuesday
A 30 percent chance of rain, mainly before 11am. Patchy fog after 2pm. Otherwise, mostly cloudy, with a high near 47. Calm wind.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 34. Calm wind.
Wednesday
Areas of fog. Otherwise, cloudy, with a high near 45. Calm wind.
Wednesday Night
A 30 percent chance of rain after 4am. Areas of fog. Otherwise, mostly cloudy, with a low around 36.
Thursday
Rain, mainly after 10am. Patchy fog before 7am. High near 46. Chance of precipitation is 80%.
Thursday Night
Rain. Cloudy, with a low around 42.
Friday
Rain. Cloudy, with a high near 52.
Friday Night
Rain. Cloudy, with a low around 44.
Saturday
Rain. Mostly cloudy, with a high near 51.
Saturday Night
Rain. Mostly cloudy, with a low around 42.
Sunday
Rain. Cloudy, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chehalis WA
 46.66°N 122.95°W (Elev. 420 ft)
Last Update:
11:26 am PST Dec 1, 2025
Forecast Valid:
11am PST Dec 1, 2025-6pm PST Dec 7, 2025
 
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