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

Extremely Critical Fire Weather in the Central Plains; Active Pattern in the West

Gusty to high winds and low relative humidity will bring critical to extremely critical fire weather conditions to the central and southern Plains today into Wednesday. Use caution with any potential ignition sources. Two Pacific storms will impact the western U.S. into Wednesday with gusty winds, low elevation rain and heavy mountain snow. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

42°F

6°C

Humidity 82%
Wind Speed NE 1 MPH
Barometer 29.5 in (998.99 mb)
Dewpoint 37°F (3°C)
Visibility NA
Last update 17 Feb 01:30 PM PST
Extended Forecast for

4 Miles SSW Onalaska WA

  • This Afternoon

    This Afternoon: Showers likely, mainly between 2pm and 4pm. Partly sunny, with a high near 41. Light south wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of rain and snow showers before 3am, then a slight chance of snow showers between 3am and 4am, then a slight chance of rain and snow showers after 4am. Mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance
    Showers then
    Slight Chance
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow showers, mainly after 2pm. High near 40. Light south wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow showers before 2am, then a chance of snow showers. Low around 26. Calm wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of snow showers before 1pm, then a chance of rain and snow showers. Partly sunny, with a high near 42. Calm wind. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow showers before 10pm, then a chance of snow showers. Mostly cloudy, with a low around 23. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 23 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Friday

    Friday: A chance of snow before 10am, then rain and snow likely between 10am and 1pm, then rain likely after 1pm. Mostly cloudy, with a high near 42. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow
    Likely

  • Friday Night

    Friday Night: Rain likely before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: Rain likely, possibly mixed with snow, becoming all rain after 10am. Mostly cloudy, with a high near 48.

    High: 48 °F

    Rain/Snow
    Likely then
    Rain Likely

Detailed Forecast

This Afternoon
Showers likely, mainly between 2pm and 4pm. Partly sunny, with a high near 41. Light south wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of rain and snow showers before 3am, then a slight chance of snow showers between 3am and 4am, then a slight chance of rain and snow showers after 4am. Mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Wednesday
Rain and snow showers, mainly after 2pm. High near 40. Light south wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow showers before 2am, then a chance of snow showers. Low around 26. Calm wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow showers before 1pm, then a chance of rain and snow showers. Partly sunny, with a high near 42. Calm wind. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Thursday Night
A chance of rain and snow showers before 10pm, then a chance of snow showers. Mostly cloudy, with a low around 23. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
A chance of snow before 10am, then rain and snow likely between 10am and 1pm, then rain likely after 1pm. Mostly cloudy, with a high near 42. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday Night
Rain likely before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 30.
Saturday
Rain likely, possibly mixed with snow, becoming all rain after 10am. Mostly cloudy, with a high near 48.
Saturday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 34.
Sunday
Rain. Mostly cloudy, with a high near 51.
Sunday Night
Rain. Mostly cloudy, with a low around 35.
Monday
Rain. Mostly cloudy, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Onalaska WA
 46.52°N 122.75°W (Elev. 423 ft)
Last Update:
1:26 pm PST Feb 17, 2026
Forecast Valid:
1pm PST Feb 17, 2026-6pm PST Feb 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation