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 85%
Wind Speed S 3 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 43°F (6°C)
Visibility NA
Last update 13 Oct 10:30 AM PDT
Extended Forecast for

Onalaska WA

  • Columbus Day

    Columbus Day: Sunny, with a high near 59. North northeast wind 6 to 9 mph.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Areas of frost after 3am. Otherwise, clear, with a low around 34. North wind 3 to 6 mph.

    Low: 34 °F

    Clear then
    Areas Frost

  • Tuesday

    Tuesday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62. Calm wind becoming north around 5 mph in the afternoon.

    High: 62 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy frost after 3am. Otherwise, mostly clear, with a low around 35. Light east northeast wind.

    Low: 35 °F

    Clear then
    Patchy Frost

  • Wednesday

    Wednesday: Areas of frost before 9am. Otherwise, sunny, with a high near 64. Calm wind.

    High: 64 °F

    Areas Frost
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers after 11am. Partly sunny, with a high near 58.

    High: 58 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, mainly before 11am. Partly sunny, with a high near 61.

    High: 61 °F

    Chance
    Showers

Detailed Forecast

Columbus Day
Sunny, with a high near 59. North northeast wind 6 to 9 mph.
Tonight
Areas of frost after 3am. Otherwise, clear, with a low around 34. North wind 3 to 6 mph.
Tuesday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
Patchy frost after 3am. Otherwise, mostly clear, with a low around 35. Light east northeast wind.
Wednesday
Areas of frost before 9am. Otherwise, sunny, with a high near 64. Calm wind.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
A 20 percent chance of showers after 11am. Partly sunny, with a high near 58.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 45.
Friday
A chance of showers, mainly before 11am. Partly sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 41.
Saturday
A chance of showers. Mostly cloudy, with a high near 60.
Saturday Night
Showers likely. Mostly cloudy, with a low around 44.
Sunday
Showers. Cloudy, with a high near 55.
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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:
8:00 am PDT Oct 13, 2025
Forecast Valid:
10am PDT Oct 13, 2025-6pm PDT Oct 19, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation