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

37°F

3°C

Humidity 93%
Wind Speed ENE 1 MPH
Barometer 29.45 in (997.29 mb)
Dewpoint 35°F (2°C)
Visibility NA
Last update 17 Feb 10:15 AM PST
Extended Forecast for

Onalaska WA

  • Today

    Today: Rain and snow likely before 3pm, then rain between 3pm and 4pm, then a chance of rain and snow after 4pm. High near 40. South wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow

  • Tonight

    Tonight: A chance of rain and snow before 10pm, then a chance of snow after 1am. Mostly cloudy, with a low around 27. Calm wind. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Wednesday

    Wednesday: Snow before 1pm, then rain. High near 40. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Snow then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain before 7pm, then rain and snow. Low around 28. Calm wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of snow before 1pm, then a chance of rain and snow. Partly sunny, with a high near 41. Calm wind. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Friday

    Friday: Snow likely before 1pm, then rain likely, possibly mixed with snow between 1pm and 4pm, then rain likely after 4pm. Mostly cloudy, with a high near 40. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Friday Night

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

    Low: 30 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: Rain and snow likely, becoming all rain after 10am. Mostly cloudy, with a high near 45.

    High: 45 °F

    Rain/Snow
    Likely then
    Rain Likely

Detailed Forecast

Today
Rain and snow likely before 3pm, then rain between 3pm and 4pm, then a chance of rain and snow after 4pm. High near 40. South wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A chance of rain and snow before 10pm, then a chance of snow after 1am. Mostly cloudy, with a low around 27. Calm wind. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Wednesday
Snow before 1pm, then rain. High near 40. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain before 7pm, then rain and snow. Low around 28. Calm wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow before 1pm, then a chance of rain and snow. Partly sunny, with a high near 41. 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 before 7pm, then a chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Friday
Snow likely before 1pm, then rain likely, possibly mixed with snow between 1pm and 4pm, then rain likely after 4pm. Mostly cloudy, with a high near 40. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
Rain likely before 10pm, then snow likely, possibly mixed with rain. Mostly cloudy, with a low around 30.
Saturday
Rain and snow likely, becoming all rain after 10am. Mostly cloudy, with a high near 45.
Saturday Night
Rain likely. Mostly cloudy, with a low around 34.
Sunday
Rain. Mostly cloudy, with a high near 48.
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:
Onalaska WA
 46.58°N 122.74°W (Elev. 600 ft)
Last Update:
7:01 am PST Feb 17, 2026
Forecast Valid:
10am PST Feb 17, 2026-6pm PST Feb 23, 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