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

47°F

8°C

Humidity 94%
Wind Speed E 2 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 45°F (7°C)
Visibility NA
Last update 22 Nov 07:00 PM PST
Extended Forecast for

6 Miles SE Onalaska WA

  • Tonight

    Tonight: Showers, mainly after 2am. Low around 43. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Slight Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers, mainly before 11am. High near 48. Light west southwest wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 48 °F

    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely. Mostly cloudy, with a low around 35. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before 10am. Mostly cloudy, with a high near 45. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 30 percent chance of showers after 4am. Patchy fog before 10pm, then patchy fog after 1am. Otherwise, mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Patchy Fog
    then Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Showers likely, mainly after 10am. Mostly cloudy, with a high near 45. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 45 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers. Low around 39. Chance of precipitation is 90%.

    Low: 39 °F

    Showers

  • Wednesday

    Wednesday: Showers. Cloudy, with a high near 51.

    High: 51 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers. Cloudy, with a low around 45.

    Low: 45 °F

    Showers

Detailed Forecast

Tonight
Showers, mainly after 2am. Low around 43. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers, mainly before 11am. High near 48. Light west southwest wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely. Mostly cloudy, with a low around 35. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely, mainly before 10am. Mostly cloudy, with a high near 45. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 30 percent chance of showers after 4am. Patchy fog before 10pm, then patchy fog after 1am. Otherwise, mostly cloudy, with a low around 32. Calm wind.
Tuesday
Showers likely, mainly after 10am. Mostly cloudy, with a high near 45. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Showers. Low around 39. Chance of precipitation is 90%.
Wednesday
Showers. Cloudy, with a high near 51.
Wednesday Night
Showers. Cloudy, with a low around 45.
Thanksgiving Day
Showers. Cloudy, with a high near 53.
Thursday Night
Showers likely. Mostly cloudy, with a low around 43.
Friday
Showers. Mostly cloudy, with a high near 50.
Friday Night
Showers likely. Mostly cloudy, with a low around 37.
Saturday
Showers likely. Mostly cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Onalaska WA
 46.51°N 122.62°W (Elev. 400 ft)
Last Update:
7:01 pm PST Nov 22, 2025
Forecast Valid:
7pm PST Nov 22, 2025-6pm PST Nov 29, 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