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

48°F

9°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 20 Mar 10:15 PM PDT
Extended Forecast for

Chehalis WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. West wind around 7 mph.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 52. West northwest wind 3 to 7 mph.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. West northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of rain and snow before 11am. Partly sunny, with a high near 54. Calm wind becoming northwest around 5 mph in the afternoon. 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. Northwest wind around 6 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 30 percent chance of rain after 11pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. Cloudy, with a high near 55.

    High: 55 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 36. West wind around 7 mph.
Saturday
Mostly sunny, with a high near 52. West northwest wind 3 to 7 mph.
Saturday Night
Mostly clear, with a low around 33. West northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
A slight chance of rain and snow before 11am. Partly sunny, with a high near 54. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 35. Northwest wind around 6 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 55.
Monday Night
A 30 percent chance of rain after 11pm. Mostly cloudy, with a low around 41.
Tuesday
Rain. Cloudy, with a high near 55.
Tuesday Night
Rain. Mostly cloudy, with a low around 42.
Wednesday
Rain likely. Mostly cloudy, with a high near 52.
Wednesday Night
A chance of rain and snow. Partly cloudy, with a low around 33.
Thursday
A slight chance of rain and snow. Mostly sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 34.
Friday
Mostly sunny, with a high near 58.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chehalis WA
 46.68°N 122.98°W (Elev. 180 ft)
Last Update:
11:27 am PDT Mar 20, 2026
Forecast Valid:
10pm PDT Mar 20, 2026-6pm PDT Mar 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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