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

Heavy Rain Across the Southern US; Unsettled Pattern in the Pacific Northwest

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains Friday, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. High elevation snow and mixed precipitation and rain in the lower elevations will impact the Pacific Northwest this weekend before a stronger system moves in early next week. Read More >

Current conditions at

Chehalis-Centralia Airport (KCLS)

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

Overcast

50°F

10°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 12 Feb 05:35 PM PST
Extended Forecast for

Chehalis WA

  • Tonight

    Tonight: A 20 percent chance of rain after 1am. Patchy fog between 9pm and midnight. Otherwise, increasing clouds, with a low around 37. Light and variable wind.

    Low: 37 °F

    Patchy Fog
    then Slight
    Chance Rain

  • Friday

    Friday: Rain, mainly after 1pm. High near 46. South wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Chance Rain
    then Rain

  • Friday Night

    Friday Night: Rain. Low around 36. Light south southwest wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Rain then
    Rain Likely

  • Saturday

    Saturday: A 40 percent chance of rain. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 47. Light and variable wind.

    High: 47 °F

    Chance Rain
    and Patchy
    Fog

  • Saturday Night

    Saturday Night: A chance of rain before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 33. Light north wind. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Sunday

    Sunday: A slight chance of rain and snow before 10am, then a slight chance of rain. Mostly sunny, with a high near 47. Chance of precipitation is 20%.

    High: 47 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain and snow after 4am. Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 30. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 30 °F

    Patchy Fog
    then Chance
    Rain/Snow and
    Patchy Fog

  • Washington's Birthday

    Washington's Birthday: A chance of rain and snow before 10am, then rain likely. Mostly cloudy, with a high near 45.

    High: 45 °F

    Rain/Snow
    Likely then
    Rain Likely

  • Monday Night

    Monday Night: Rain likely before 4am, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Rain Likely
    then
    Rain/Snow
    Likely

Detailed Forecast

Tonight
A 20 percent chance of rain after 1am. Patchy fog between 9pm and midnight. Otherwise, increasing clouds, with a low around 37. Light and variable wind.
Friday
Rain, mainly after 1pm. High near 46. South wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain. Low around 36. Light south southwest wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 40 percent chance of rain. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 47. Light and variable wind.
Saturday Night
A chance of rain before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 33. Light north wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
A slight chance of rain and snow before 10am, then a slight chance of rain. Mostly sunny, with a high near 47. Chance of precipitation is 20%.
Sunday Night
A chance of rain and snow after 4am. Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 30. Chance of precipitation is 30%. Little or no snow accumulation expected.
Washington's Birthday
A chance of rain and snow before 10am, then rain likely. Mostly cloudy, with a high near 45.
Monday Night
Rain likely before 4am, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 32.
Tuesday
Rain likely, possibly mixed with snow, becoming all rain after 10am. Mostly cloudy, with a high near 43.
Tuesday Night
Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 32.
Wednesday
Rain, possibly mixed with snow. Cloudy, with a high near 43.
Wednesday Night
Rain, possibly mixed with snow. Mostly cloudy, with a low around 31.
Thursday
Rain, possibly mixed with snow. Mostly cloudy, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chehalis WA
 46.66°N 122.98°W (Elev. 177 ft)
Last Update:
1:26 pm PST Feb 12, 2026
Forecast Valid:
5pm PST Feb 12, 2026-6pm PST Feb 19, 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