National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Record Breaking Temperatures and Critical Fire Weather

More than 200 record or near record maximum temperatures are forecast across the southern half of the U.S. through the end of this week before additional record temperatures center back over the Southwest U.S. into the Rockies this weekend. Widespread record breaking warmth, low humidity, and gusty winds will produce critical fire weather today in the central Rockies to Plains. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

38°F

3°C

Humidity 100%
Wind Speed ENE 0 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 38°F (3°C)
Visibility NA
Last update 25 Mar 04:45 AM PDT
Extended Forecast for

Onalaska WA

  • Overnight

    Overnight: A 20 percent chance of rain. Mostly cloudy, with a low around 38. South wind around 5 mph.

    Low: 38 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then a chance of rain and thunderstorms after 5pm. High near 47. South wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 47 °F

    Showers
    Likely then
    Showers

  • Wednesday Night

    Wednesday Night: A chance of rain, possibly mixing with snow after 8pm, then gradually ending. Partly cloudy, with a low around 32. West southwest wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain after 11am. Mostly sunny, with a high near 51. Light southwest wind.

    High: 51 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30. Light and variable wind.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain. Mostly cloudy, with a low around 38. South wind around 5 mph.
Wednesday
Rain and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then a chance of rain and thunderstorms after 5pm. High near 47. South wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of rain, possibly mixing with snow after 8pm, then gradually ending. Partly cloudy, with a low around 32. West southwest wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday
A 20 percent chance of rain after 11am. Mostly sunny, with a high near 51. Light southwest wind.
Thursday Night
Mostly clear, with a low around 30. Light and variable wind.
Friday
Mostly sunny, with a high near 57.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
Partly sunny, with a high near 58.
Saturday Night
Mostly cloudy, with a low around 37.
Sunday
A chance of rain, mainly after 11am. Mostly cloudy, with a high near 55.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 37.
Monday
A chance of rain. Mostly cloudy, with a high near 51.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 33.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Onalaska WA
 46.58°N 122.74°W (Elev. 600 ft)
Last Update:
11:27 pm PDT Mar 24, 2026
Forecast Valid:
5am PDT Mar 25, 2026-6pm PDT Mar 31, 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