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 (CLSW1)

Lat: 46.61°NLon: 122.90833°WElev: 262.0ft.

NA

44°F

7°C

Humidity 73%
Wind Speed SSE 1 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 21 Mar 09:09 AM PDT
Extended Forecast for

6 Miles SE Napavine WA

  • Today

    Today: Mostly sunny, with a high near 50. Northwest wind around 5 mph becoming calm.

    High: 50 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 30. Calm wind.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 53. Calm wind.

    High: 53 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 52. Light north wind.

    High: 52 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 50 percent chance of rain after 11pm.  Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain.  High near 52. Chance of precipitation is 100%.

    High: 52 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Mostly cloudy, with a low around 38.

    Low: 38 °F

    Rain

  • Wednesday

    Wednesday: Rain.  Mostly cloudy, with a high near 50.

    High: 50 °F

    Rain

Detailed Forecast

Today
Mostly sunny, with a high near 50. Northwest wind around 5 mph becoming calm.
Tonight
Mostly clear, with a low around 30. Calm wind.
Sunday
Partly sunny, with a high near 53. Calm wind.
Sunday Night
Mostly cloudy, with a low around 33. North northwest wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 52. Light north wind.
Monday Night
A 50 percent chance of rain after 11pm. Mostly cloudy, with a low around 39.
Tuesday
Rain. High near 52. Chance of precipitation is 100%.
Tuesday Night
Rain. Mostly cloudy, with a low around 38.
Wednesday
Rain. Mostly cloudy, with a high near 50.
Wednesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 34.
Thursday
A chance of rain. Partly sunny, with a high near 52.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 31.
Friday
A slight chance of rain. Mostly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Napavine WA
 46.53°N 122.81°W (Elev. 417 ft)
11:27 pm PDT Mar 20, 2026
9am PDT Mar 21, 2026-6pm PDT Mar 27, 2026
 
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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