Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

53°F

12°C

Humidity 97%
Wind Speed WNW 0 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 52°F (11°C)
Visibility NA
Last update 21 Apr 06:15 PM PDT
Extended Forecast for

4 Miles SSW Onalaska WA

  • Tonight

    Tonight: A chance of rain before 11pm, then rain likely after 1am.  Cloudy, with a low around 45. West northwest wind 3 to 5 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday

    Wednesday: Rain, mainly before noon.  High near 54. Light southwest wind increasing to 5 to 9 mph in the morning.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Rain then
    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 41. Southwest wind 3 to 8 mph.

    Low: 41 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 61. Light and variable wind.

    High: 61 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37. Light north wind.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of rain before 11pm, then rain likely after 1am. Cloudy, with a low around 45. West northwest wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain, mainly before noon. High near 54. Light southwest wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 41. Southwest wind 3 to 8 mph.
Thursday
Partly sunny, with a high near 61. Light and variable wind.
Thursday Night
Mostly clear, with a low around 37. Light north wind.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 42.
Monday
A slight chance of rain. Partly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Onalaska WA
 46.52°N 122.75°W (Elev. 423 ft)
2:15 pm PDT Apr 21, 2026
6pm PDT Apr 21, 2026-6pm PDT Apr 28, 2026
 
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Additional Resources

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