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

42°F

6°C

Humidity 99%
Wind Speed E 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 42°F (6°C)
Visibility NA
Last update 23 Nov 06:15 PM PST
Extended Forecast for

Onalaska WA

  • Tonight

    Tonight: A 30 percent chance of showers, mainly between midnight and 3am. Patchy fog before 10pm. Otherwise, mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Patchy Fog
    then Chance
    Showers

  • Monday

    Monday: Showers likely, mainly before 4pm. Patchy fog after 5pm. Otherwise, partly sunny, with a high near 45. Light south wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Showers
    Likely and
    Patchy Fog

  • Monday Night

    Monday Night: A slight chance of showers before 10pm, then a slight chance of rain after 4am. Patchy fog between 7pm and 9pm. Otherwise, mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of rain, mainly after 10am. Mostly cloudy, with a high near 43. Calm wind.

    High: 43 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 38. South southeast wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 38 °F

    Rain

  • Wednesday

    Wednesday: Rain. High near 49. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 49 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain. Low around 44. Chance of precipitation is 80%.

    Low: 44 °F

    Rain

  • Thanksgiving Day

    Thanksgiving Day: Rain. Cloudy, with a high near 51.

    High: 51 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain Likely

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly between midnight and 3am. Patchy fog before 10pm. Otherwise, mostly cloudy, with a low around 34. Calm wind.
Monday
Showers likely, mainly before 4pm. Patchy fog after 5pm. Otherwise, partly sunny, with a high near 45. Light south wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A slight chance of showers before 10pm, then a slight chance of rain after 4am. Patchy fog between 7pm and 9pm. Otherwise, mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 20%.
Tuesday
A 50 percent chance of rain, mainly after 10am. Mostly cloudy, with a high near 43. Calm wind.
Tuesday Night
Rain. Low around 38. South southeast wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
Rain. High near 49. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Rain. Low around 44. Chance of precipitation is 80%.
Thanksgiving Day
Rain. Cloudy, with a high near 51.
Thursday Night
Rain likely. Mostly cloudy, with a low around 41.
Friday
Rain likely. Mostly cloudy, with a high near 48.
Friday Night
A chance of rain. Mostly cloudy, with a low around 36.
Saturday
A chance of rain. Mostly cloudy, with a high near 45.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 30.
Sunday
A chance of rain and snow. Partly sunny, with a high near 43.
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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:
1:25 pm PST Nov 23, 2025
Forecast Valid:
6pm PST Nov 23, 2025-6pm PST Nov 30, 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