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

41°F

5°C

Humidity 98%
Wind Speed E 0 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 40°F (4°C)
Visibility NA
Last update 02 Dec 02:15 AM PST
Extended Forecast for

Onalaska WA

  • Overnight

    Overnight: A 50 percent chance of rain. Cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Chance Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly before 10am. Patchy fog after 1pm. Otherwise, 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 33. Calm wind.

    Low: 33 °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: Rain likely after 4am. Areas of fog. Otherwise, mostly cloudy, with a low around 36. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Areas Fog
    then Rain
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Rain. High near 45. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 45 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 42. Chance of precipitation is 80%.

    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 45.

    Low: 45 °F

    Rain

Detailed Forecast

Overnight
A 50 percent chance of rain. Cloudy, with a low around 37. Calm wind.
Tuesday
A 30 percent chance of rain, mainly before 10am. Patchy fog after 1pm. Otherwise, cloudy, with a high near 45. Calm wind.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 33. Calm wind.
Wednesday
Patchy fog. Otherwise, mostly cloudy, with a high near 44. Calm wind.
Wednesday Night
Rain likely after 4am. Areas of fog. Otherwise, mostly cloudy, with a low around 36. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain. High near 45. 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 80%.
Friday
Rain. Cloudy, with a high near 51.
Friday Night
Rain. Cloudy, with a low around 45.
Saturday
Rain. Cloudy, with a high near 50.
Saturday Night
Rain likely. Cloudy, with a low around 44.
Sunday
Rain. Cloudy, with a high near 50.
Sunday Night
Rain likely. Mostly cloudy, with a low around 41.
Monday
Rain likely. Cloudy, with a high near 52.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Onalaska WA
 46.58°N 122.74°W (Elev. 600 ft)
Last Update:
1:25 am PST Dec 2, 2025
Forecast Valid:
2am PST Dec 2, 2025-6pm PST Dec 8, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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