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

39°F

4°C

Humidity 97%
Wind Speed WNW 0 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 38°F (3°C)
Visibility NA
Last update 18 Oct 12:15 AM PDT
Extended Forecast for

6 Miles SE Onalaska WA

  • Overnight

    Overnight: Patchy fog. Otherwise, partly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Patchy Fog

  • Saturday

    Saturday: A 50 percent chance of rain after 2pm. Patchy fog before 8am. Otherwise, increasing clouds, with a high near 57. Calm wind.

    High: 57 °F

    Chance Rain
    and Patchy
    Fog

  • Saturday Night

    Saturday Night: Rain. Low around 45. Calm wind becoming south southeast 5 to 7 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 45 °F

    Rain

  • Sunday

    Sunday: Rain before 8am, then showers and possibly a thunderstorm after 8am. High near 56. South southwest wind 3 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 56 °F

    Showers

  • Sunday Night

    Sunday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 42. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Rain Likely
    then Slight
    Chance Rain

  • Monday

    Monday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain. Mostly cloudy, with a high near 59.

    High: 59 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
Patchy fog. Otherwise, partly cloudy, with a low around 37. Calm wind.
Saturday
A 50 percent chance of rain after 2pm. Patchy fog before 8am. Otherwise, increasing clouds, with a high near 57. Calm wind.
Saturday Night
Rain. Low around 45. Calm wind becoming south southeast 5 to 7 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Rain before 8am, then showers and possibly a thunderstorm after 8am. High near 56. South southwest wind 3 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 42. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Partly sunny, with a high near 62.
Monday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 41.
Tuesday
A chance of rain. Mostly cloudy, with a high near 59.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 38.
Wednesday
A chance of rain. Mostly cloudy, with a high near 61.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 43.
Thursday
Rain likely. Mostly cloudy, with a high near 62.
Thursday Night
Rain. Cloudy, with a low around 47.
Friday
Rain. Cloudy, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Onalaska WA
 46.51°N 122.62°W (Elev. 400 ft)
Last Update:
8:00 pm PDT Oct 17, 2025
Forecast Valid:
12am PDT Oct 18, 2025-6pm PDT Oct 24, 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