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

43°F

6°C

Humidity 95%
Wind Speed N 0 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 42°F (6°C)
Visibility NA
Last update 01 Dec 04:01 PM PST
Extended Forecast for

Onalaska WA

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 10pm. Cloudy, with a steady temperature around 40. Calm wind.

    Low: 40 °F

    Chance Rain

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly before 10am. Patchy fog after 1pm. Otherwise, mostly cloudy, with a high near 45. Calm wind.

    High: 45 °F

    Chance Rain
    and Patchy
    Fog

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog. Otherwise, mostly cloudy, with a high near 44. Calm wind.

    High: 44 °F

    Patchy Fog

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 4am. Areas of fog. Otherwise, mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Areas Fog
    then Chance
    Rain and
    Patchy Fog

  • Thursday

    Thursday: Rain, mainly after 10am. High near 44. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 44 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 42. Chance of precipitation is 90%.

    Low: 42 °F

    Rain

  • Friday

    Friday: Rain. Cloudy, with a high near 51.

    High: 51 °F

    Rain

  • Friday Night

    Friday Night: Rain. Cloudy, with a low around 43.

    Low: 43 °F

    Rain

Detailed Forecast

Tonight
A 50 percent chance of rain, mainly after 10pm. Cloudy, with a steady temperature around 40. Calm wind.
Tuesday
A 40 percent chance of rain, mainly before 10am. Patchy fog after 1pm. Otherwise, mostly cloudy, with a high near 45. Calm wind.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 34. Calm wind.
Wednesday
Patchy fog. Otherwise, mostly cloudy, with a high near 44. Calm wind.
Wednesday Night
A 30 percent chance of rain after 4am. Areas of fog. Otherwise, mostly cloudy, with a low around 35. Calm wind.
Thursday
Rain, mainly after 10am. High near 44. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Low around 42. Chance of precipitation is 90%.
Friday
Rain. Cloudy, with a high near 51.
Friday Night
Rain. Cloudy, with a low around 43.
Saturday
Rain. Mostly cloudy, with a high near 50.
Saturday Night
Rain. Mostly cloudy, with a low around 41.
Sunday
Rain. Cloudy, with a high near 49.
Sunday Night
Rain likely. Mostly cloudy, with a low around 41.
Monday
Rain. Cloudy, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Onalaska WA
 46.58°N 122.74°W (Elev. 600 ft)
Last Update:
1:26 pm PST Dec 1, 2025
Forecast Valid:
4pm PST Dec 1, 2025-6pm PST Dec 8, 2025
 
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