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

DW8787 CHEHALIS (D8787)

Lat: 46.64646°NLon: 122.8388°WElev: 550.0ft.

NA

30°F

-1°C

Humidity 97%
Wind Speed NW 0 MPH
Barometer 30.42 in (1030.14 mb)
Dewpoint 29°F (-2°C)
Visibility NA
Last update 22 Mar 12:45 AM PDT
Extended Forecast for

7 Miles NNE Onalaska WA

  • Overnight

    Overnight: Mostly clear, with a low around 31. East wind 3 to 5 mph.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 47. Light and variable wind becoming north around 6 mph in the afternoon.

    High: 47 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 31. Northeast wind around 6 mph.

    Low: 31 °F

    Mostly Cloudy

  • Monday

    Monday: Increasing clouds, with a high near 48. Northeast wind 3 to 6 mph.

    High: 48 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A 50 percent chance of rain after 11pm. Cloudy, with a low around 40. North wind around 5 mph becoming light and variable.

    Low: 40 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. High near 46. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 46 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain before 2am, then rain likely, possibly mixed with snow. Low around 37. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Rain, possibly mixed with snow showers, becoming all rain after 2pm. Some thunder is also possible. Mostly cloudy, with a high near 43.

    High: 43 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain likely before 8pm, then rain and snow likely between 8pm and 2am, then a chance of snow after 2am. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Rain/Snow
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 31. East wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 47. Light and variable wind becoming north around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 31. Northeast wind around 6 mph.
Monday
Increasing clouds, with a high near 48. Northeast wind 3 to 6 mph.
Monday Night
A 50 percent chance of rain after 11pm. Cloudy, with a low around 40. North wind around 5 mph becoming light and variable.
Tuesday
Rain. High near 46. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain before 2am, then rain likely, possibly mixed with snow. Low around 37. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday
Rain, possibly mixed with snow showers, becoming all rain after 2pm. Some thunder is also possible. Mostly cloudy, with a high near 43.
Wednesday Night
Rain likely before 8pm, then rain and snow likely between 8pm and 2am, then a chance of snow after 2am. Mostly cloudy, with a low around 32.
Thursday
A chance of snow before 11am, then a chance of rain. Partly sunny, with a high near 47.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 34.
Saturday
A slight chance of rain. Mostly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNE Onalaska WA
 46.66°N 122.63°W (Elev. 1601 ft)
Last Update:
11:27 pm PDT Mar 21, 2026
Forecast Valid:
1am PDT Mar 22, 2026-6pm PDT Mar 28, 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