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

53°F

12°C

Humidity 86%
Wind Speed WNW 0 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 49°F (9°C)
Visibility NA
Last update 16 Oct 06:30 PM PDT
Extended Forecast for

4 Miles SSW Onalaska WA

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 3am. Patchy fog between 11pm and midnight. Otherwise, mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Patchy Fog
    then Chance
    Rain

  • Friday

    Friday: A 40 percent chance of rain, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 61. Calm wind becoming west around 6 mph in the afternoon.

    High: 61 °F

    Chance Rain
    then Sunny

  • Friday Night

    Friday Night: Patchy fog before 2am, then patchy fog after 5am. Otherwise, mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Patchy Fog

  • Saturday

    Saturday: A 40 percent chance of rain after 11am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 58. Calm wind.

    High: 58 °F

    Chance Rain
    and Patchy
    Fog

  • Saturday Night

    Saturday Night: Rain. Low around 44. Light south wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Rain

  • Sunday

    Sunday: Rain. High near 56. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Rain

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.

    Low: 42 °F

    Showers
    Likely then
    Chance Rain

  • Monday

    Monday: A slight chance of rain before 11am. Partly sunny, with a high near 59.

    High: 59 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of rain, mainly after 3am. Patchy fog between 11pm and midnight. Otherwise, mostly cloudy, with a low around 45. Calm wind.
Friday
A 40 percent chance of rain, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 61. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
Patchy fog before 2am, then patchy fog after 5am. Otherwise, mostly clear, with a low around 36. Calm wind.
Saturday
A 40 percent chance of rain after 11am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 58. Calm wind.
Saturday Night
Rain. Low around 44. Light south wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 56. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.
Monday
A slight chance of rain before 11am. Partly sunny, with a high near 59.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
A chance of rain. Mostly cloudy, with a high near 58.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 38.
Wednesday
A slight chance of rain. Partly sunny, with a high near 60.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 42.
Thursday
A chance of rain. Mostly cloudy, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Onalaska WA
 46.54°N 122.75°W (Elev. 535 ft)
Last Update:
2:25 pm PDT Oct 16, 2025
Forecast Valid:
6pm PDT Oct 16, 2025-6pm PDT Oct 23, 2025
 
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Additional Resources

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Chance of Precipitation