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

DW8787 CHEHALIS (D8787)

Lat: 46.64646°NLon: 122.8388°WElev: 564.0ft.

NA

49°F

9°C

Humidity 100%
Wind Speed SE 2 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 49°F (9°C)
Visibility NA
Last update 27 Nov 09:16 PM PST
Extended Forecast for

Onalaska WA

  • Tonight

    Tonight: Rain, mainly before 3am. Low around 43. South wind 5 to 8 mph becoming light and variable after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Rain

  • Friday

    Friday: Patchy fog after 4pm. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 51. Calm wind.

    High: 51 °F

    Mostly Sunny
    then Patchy
    Fog

  • Friday Night

    Friday Night: Patchy fog before 9pm. Otherwise, mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain, mainly between 10am and 4pm. Mostly cloudy, with a high near 47. Calm wind.

    High: 47 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Monday

    Monday: A chance of rain, mainly after 10am. Mostly cloudy, with a high near 45.

    High: 45 °F

    Chance Rain

  • Monday Night

    Monday Night: Rain likely, mainly after 10pm. Cloudy, with a low around 38.

    Low: 38 °F

    Rain Likely

Detailed Forecast

Tonight
Rain, mainly before 3am. Low around 43. South wind 5 to 8 mph becoming light and variable after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Patchy fog after 4pm. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 51. Calm wind.
Friday Night
Patchy fog before 9pm. Otherwise, mostly cloudy, with a low around 36. Calm wind.
Saturday
A 30 percent chance of rain, mainly between 10am and 4pm. Mostly cloudy, with a high near 47. Calm wind.
Saturday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 32. Calm wind.
Sunday
Partly sunny, with a high near 46.
Sunday Night
A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 32.
Monday
A chance of rain, mainly after 10am. Mostly cloudy, with a high near 45.
Monday Night
Rain likely, mainly after 10pm. Cloudy, with a low around 38.
Tuesday
A chance of rain, mainly before 4pm. Mostly cloudy, with a high near 47.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 35.
Wednesday
A slight chance of rain. Mostly cloudy, with a high near 46.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 36.
Thursday
A chance of rain. Mostly cloudy, with a high near 47.
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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:
7:00 pm PST Nov 27, 2025
Forecast Valid:
9pm PST Nov 27, 2025-6pm PST Dec 4, 2025
 
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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