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Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

35°F

2°C

Humidity 99%
Wind Speed ESE 1 MPH
Barometer 29.72 in (1006.44 mb)
Dewpoint 35°F (2°C)
Visibility NA
Last update 18 Feb 09:30 AM PST
Extended Forecast for

Onalaska WA

  • Today

    Today: A chance of rain and snow showers before 1pm, then rain showers likely between 1pm and 4pm, then a slight chance of rain and snow showers after 4pm. Mostly cloudy, with a high near 39. Calm wind becoming south around 5 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow
    Likely

  • Tonight

    Tonight: Rain and snow showers, mainly before 2am. Low around 29. Calm wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Rain/Snow

  • Thursday

    Thursday: A chance of rain and snow showers before 7am, then a chance of snow showers between 7am and 10am, then a chance of rain and snow showers after 10am. Partly sunny, with a high near 42. Light north wind. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A slight chance of rain and snow showers before 10pm, then a slight chance of snow showers after 4am. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 23. Calm wind. Chance of precipitation is 20%.

    Low: 23 °F

    Slight Chance
    Rain/Snow and
    Patchy Fog

  • Friday

    Friday: A chance of snow before 1pm, then a chance of rain and snow between 1pm and 4pm, then a chance of rain after 4pm. Partly sunny, with a high near 42. Light south wind. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 42 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain and snow before 10am, then rain likely. Mostly cloudy, with a high near 47. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 47 °F

    Rain/Snow
    Likely then
    Rain Likely

  • Saturday Night

    Saturday Night: Rain likely, mainly after 4am. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Rain Likely

  • Sunday

    Sunday: Rain. Mostly cloudy, with a high near 51.

    High: 51 °F

    Rain

Detailed Forecast

Today
A chance of rain and snow showers before 1pm, then rain showers likely between 1pm and 4pm, then a slight chance of rain and snow showers after 4pm. Mostly cloudy, with a high near 39. Calm wind becoming south around 5 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tonight
Rain and snow showers, mainly before 2am. Low around 29. Calm wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
A chance of rain and snow showers before 7am, then a chance of snow showers between 7am and 10am, then a chance of rain and snow showers after 10am. Partly sunny, with a high near 42. Light north wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday Night
A slight chance of rain and snow showers before 10pm, then a slight chance of snow showers after 4am. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 23. Calm wind. Chance of precipitation is 20%.
Friday
A chance of snow before 1pm, then a chance of rain and snow between 1pm and 4pm, then a chance of rain after 4pm. Partly sunny, with a high near 42. Light south wind. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday Night
A chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday
A chance of rain and snow before 10am, then rain likely. Mostly cloudy, with a high near 47. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 35.
Sunday
Rain. Mostly cloudy, with a high near 51.
Sunday Night
Rain. Cloudy, with a low around 37.
Monday
Rain. Cloudy, with a high near 48.
Monday Night
Rain. Mostly cloudy, with a low around 35.
Tuesday
Rain. Mostly cloudy, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Onalaska WA
 46.58°N 122.74°W (Elev. 600 ft)
Last Update:
7:01 am PST Feb 18, 2026
Forecast Valid:
9am PST Feb 18, 2026-6pm PST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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