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.

Mostly Cloudy

45°F

7°C

Humidity 100%
Wind Speed N 5 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 21 Mar 01:55 AM PDT
Extended Forecast for

Chehalis WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 35. West wind around 6 mph.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 52. West northwest wind around 6 mph.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. West northwest wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 55. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 55 °F

    Partly Sunny

  • Sunday Night

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

    Low: 34 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 53.

    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. Cloudy, with a high near 54.

    High: 54 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 35. West wind around 6 mph.
Saturday
Mostly sunny, with a high near 52. West northwest wind around 6 mph.
Saturday Night
Mostly clear, with a low around 33. West northwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 55. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 34. North wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 53.
Monday Night
A 50 percent chance of rain after 11pm. Mostly cloudy, with a low around 40.
Tuesday
Rain. Cloudy, with a high near 54.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 40.
Wednesday
Rain. Mostly cloudy, with a high near 52.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 36.
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 34.
Friday
Partly sunny, with a high near 56.
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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 20, 2026
Forecast Valid:
2am 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