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: 550.0ft.

NA

43°F

6°C

Humidity 99%
Wind Speed NW 0 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 43°F (6°C)
Visibility NA
Last update 15 Oct 04:15 AM PDT
Extended Forecast for

Onalaska WA

  • Today

    Today: Sunny, with a high near 75. Calm wind.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 51. Light east wind increasing to 5 to 10 mph. Winds could gust as high as 20 mph.

    Low: 51 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 74. Calm wind.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain after 11pm. Increasing clouds, with a low around 48. Calm wind.

    Low: 48 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely, mainly before 11am. Mostly cloudy, with a high near 61. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Rain Likely
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of rain after 11am. Mostly cloudy, with a high near 57.

    High: 57 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Sunny, with a high near 75. Calm wind.
Tonight
Increasing clouds, with a low around 51. Light east wind increasing to 5 to 10 mph. Winds could gust as high as 20 mph.
Friday
Mostly sunny, with a high near 74. Calm wind.
Friday Night
A 30 percent chance of rain after 11pm. Increasing clouds, with a low around 48. Calm wind.
Saturday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 61. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Partly sunny, with a high near 60.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
A slight chance of rain after 11am. Mostly cloudy, with a high near 57.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 36.
Wednesday
Mostly sunny, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Onalaska WA
 46.57°N 122.7°W (Elev. 600 ft)
Last Update:
2:23 am PDT Oct 15, 2026
Forecast Valid:
4am PDT Oct 15, 2026-6pm PDT Oct 21, 2026
 
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