National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Pacific Storm System Moves Inland; Strong Storm in Alaska

A Pacific storm system will bring low elevation/valley rain and mountain snow as it moves inland to the central Great Basin through the central Rockies through Thursday. Scattered thunderstorms are likely from California into the Great Basin. A large low pressure system continues to bring snow, blizzard conditions, damaging winds, and mixed precipitation along the Bering Sea and Southwest Alaska. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

Lat: 46.64646°NLon: 122.8388°WElev: 550.0ft.

NA

49°F

9°C

Humidity 81%
Wind Speed NW 0 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 43°F (6°C)
Visibility NA
Last update 11 Feb 04:00 PM PST
Extended Forecast for

Onalaska WA

  • Tonight

    Tonight: Widespread dense fog, mainly between 8pm and 11pm. Otherwise, increasing clouds, with a low around 32. Calm wind.

    Low: 32 °F

    Dense Fog

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 50. Calm wind.

    High: 50 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly after 4am. Increasing clouds, with a low around 34. Calm wind.

    Low: 34 °F

    Chance Rain

  • Friday

    Friday: Rain, mainly after 10am. High near 44. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Rain

  • Friday Night

    Friday Night: Rain, mainly before 10pm. Low around 36. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Rain then
    Chance Rain

  • Saturday

    Saturday: A 50 percent chance of rain. Mostly cloudy, with a high near 43.

    High: 43 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain. Partly sunny, with a high near 44.

    High: 44 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A slight chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Widespread dense fog, mainly between 8pm and 11pm. Otherwise, increasing clouds, with a low around 32. Calm wind.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 50. Calm wind.
Thursday Night
A 30 percent chance of rain, mainly after 4am. Increasing clouds, with a low around 34. Calm wind.
Friday
Rain, mainly after 10am. High near 44. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain, mainly before 10pm. Low around 36. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 43.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 32.
Sunday
A chance of rain. Partly sunny, with a high near 44.
Sunday Night
A slight chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 30.
Washington's Birthday
A chance of rain and snow before 10am, then rain likely. Mostly cloudy, with a high near 42.
Monday Night
Rain and snow likely. Mostly cloudy, with a low around 32.
Tuesday
Rain and snow likely. Mostly cloudy, with a high near 43.
Tuesday Night
Rain and snow likely. Mostly cloudy, with a low around 32.
Wednesday
Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 44.
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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:
1:26 pm PST Feb 11, 2026
Forecast Valid:
4pm PST Feb 11, 2026-6pm PST Feb 18, 2026
 
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