Heavy Great Lakes Snow through Friday; Watching Potential for Major Winter Storm Late Week into this Weekend

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

Lat: 46.64646°NLon: 122.8388°WElev: 564.0ft.

NA

31°F

-1°C

Humidity 100%
Wind Speed WNW 0 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 31°F (-1°C)
Visibility NA
Last update 20 Jan 11:30 AM PST
Extended Forecast for

4 Miles SSW Onalaska WA

  • Today

    Today: Mostly sunny, with a high near 47. Calm wind.

    High: 47 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46. Calm wind.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog between 10pm and midnight.  Otherwise, partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Patchy Fog
    then Partly
    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 44. Calm wind.

    High: 44 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Patchy fog.  Otherwise, mostly cloudy, with a low around 30.

    Low: 30 °F

    Patchy Fog

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy fog before 1am, then patchy fog after 2am.  Otherwise, partly cloudy, with a low around 28.

    Low: 28 °F

    Patchy Fog

  • Saturday

    Saturday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 47. Calm wind.
Tonight
Partly cloudy, with a low around 27. Calm wind.
Wednesday
Mostly sunny, with a high near 46. Calm wind.
Wednesday Night
Patchy fog between 10pm and midnight. Otherwise, partly cloudy, with a low around 27. Calm wind.
Thursday
Partly sunny, with a high near 44. Calm wind.
Thursday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 44.
Friday Night
Patchy fog before 1am, then patchy fog after 2am. Otherwise, partly cloudy, with a low around 28.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
A slight chance of rain before 10pm, then rain likely, possibly mixed with snow. Patchy fog between 11pm and midnight. Otherwise, mostly cloudy, with a low around 30.
Sunday
Rain likely. Mostly cloudy, with a high near 44.
Sunday Night
Rain likely. Mostly cloudy, with a low around 36.
Monday
A chance of rain. Mostly cloudy, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Onalaska WA
 46.54°N 122.75°W (Elev. 535 ft)
7:01 am PST Jan 20, 2026
11am PST Jan 20, 2026-6pm PST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database