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.

Partly Cloudy

45°F

7°C

Humidity 75%
Wind Speed N 0 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 21 Mar 10:35 AM PDT
Extended Forecast for

Chehalis WA

  • Today

    Today: Mostly sunny, with a high near 52. Northwest wind around 6 mph.

    High: 52 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 32. Light and variable wind.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 55. Light and variable wind.

    High: 55 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 34. North northwest wind around 5 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 53. Calm wind becoming north around 5 mph in the afternoon.

    High: 53 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 50 percent chance of rain after 11pm. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. High near 54. Chance of precipitation is 100%.

    High: 54 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Rain

  • Wednesday

    Wednesday: Rain. Mostly cloudy, with a high near 52.

    High: 52 °F

    Rain

Detailed Forecast

Today
Mostly sunny, with a high near 52. Northwest wind around 6 mph.
Tonight
Mostly clear, with a low around 32. Light and variable wind.
Sunday
Partly sunny, with a high near 55. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around 34. North northwest wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 53. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
A 50 percent chance of rain after 11pm. Mostly cloudy, with a low around 40.
Tuesday
Rain. High near 54. Chance of precipitation is 100%.
Tuesday Night
Rain. Mostly cloudy, with a low around 39.
Wednesday
Rain. Mostly cloudy, with a high near 52.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 35.
Thursday
A chance of rain. Partly sunny, with a high near 54.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 33.
Friday
Partly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chehalis WA
 46.66°N 122.98°W (Elev. 177 ft)
Last Update:
11:27 pm PDT Mar 20, 2026
Forecast Valid:
10am PDT Mar 21, 2026-6pm PDT Mar 27, 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