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

57°F

14°C

Humidity 82%
Wind Speed WSW 6 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 20 Mar 04:15 PM PDT
Extended Forecast for

Chehalis WA

  • This Afternoon

    This Afternoon: A 30 percent chance of rain after 5pm. Cloudy, with a high near 56. West southwest wind around 7 mph.

    High: 56 °F

    Chance Rain

  • Tonight

    Tonight: A 10 percent chance of rain before 7pm. Mostly cloudy, with a low around 35. West wind around 6 mph.

    Low: 35 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 51. West northwest wind 3 to 6 mph.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32. West northwest wind around 6 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of rain and snow before 11am. Partly sunny, with a high near 54. Light and variable wind. Chance of precipitation is 20%.

    High: 54 °F

    Slight Chance
    Rain/Snow
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A chance of rain after 11pm. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. Cloudy, with a high near 53.

    High: 53 °F

    Rain

Detailed Forecast

This Afternoon
A 30 percent chance of rain after 5pm. Cloudy, with a high near 56. West southwest wind around 7 mph.
Tonight
A 10 percent chance of rain before 7pm. Mostly cloudy, with a low around 35. West wind around 6 mph.
Saturday
Mostly sunny, with a high near 51. West northwest wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 32. West northwest wind around 6 mph becoming calm in the evening.
Sunday
A slight chance of rain and snow before 11am. Partly sunny, with a high near 54. Light and variable wind. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 35.
Monday
Mostly cloudy, with a high near 54.
Monday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 39.
Tuesday
Rain. Cloudy, with a high near 53.
Tuesday Night
Rain. Mostly cloudy, with a low around 40.
Wednesday
Rain. Mostly cloudy, with a high near 50.
Wednesday Night
A chance of rain and snow. Partly cloudy, with a low around 32.
Thursday
A slight chance of rain and snow. Mostly sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 32.
Friday
Mostly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chehalis WA
 46.66°N 122.95°W (Elev. 420 ft)
Last Update:
11:27 am PDT Mar 20, 2026
Forecast Valid:
4pm PDT Mar 20, 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