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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Chehalis-Centralia Airport (KCLS)

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

Clear

32°F

0°C

Humidity 100%
Wind Speed WSW 4 MPH
Barometer 30.41 in (1029.8 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 22 Mar 06:15 AM PDT
Extended Forecast for

Chehalis WA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 55. Calm wind becoming north around 6 mph in the afternoon.

    High: 55 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. North wind 3 to 5 mph.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Increasing clouds, with a high near 54. North wind 3 to 5 mph.

    High: 54 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A 50 percent chance of rain after 11pm. Cloudy, with a low around 42. North wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. High near 53. South southeast wind 5 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 40. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, then showers and possibly a thunderstorm after 11am. High near 51. Chance of precipitation is 80%.

    High: 51 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of rain before 5am, then a slight chance of rain and snow. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Thursday

    Thursday: A slight chance of rain and snow before 8am, then a slight chance of rain. Mostly sunny, with a high near 54.

    High: 54 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 55. Calm wind becoming north around 6 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 33. North wind 3 to 5 mph.
Monday
Increasing clouds, with a high near 54. North wind 3 to 5 mph.
Monday Night
A 50 percent chance of rain after 11pm. Cloudy, with a low around 42. North wind around 5 mph becoming calm in the evening.
Tuesday
Rain. High near 53. South southeast wind 5 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 40. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain likely, then showers and possibly a thunderstorm after 11am. High near 51. Chance of precipitation is 80%.
Wednesday Night
A chance of rain before 5am, then a slight chance of rain and snow. Mostly cloudy, with a low around 34.
Thursday
A slight chance of rain and snow before 8am, then a slight chance of rain. Mostly sunny, with a high near 54.
Thursday Night
Mostly clear, with a low around 33.
Friday
Mostly sunny, with a high near 58.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chehalis WA
 46.68°N 122.98°W (Elev. 180 ft)
Last Update:
11:27 pm PDT Mar 21, 2026
Forecast Valid:
6am PDT Mar 22, 2026-6pm PDT Mar 28, 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