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

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

CHEHALIS (CLSW1)

Lat: 46.61°NLon: 122.90833°WElev: 262.0ft.

NA

35°F

2°C

Humidity 100%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 20 Jan 08:09 PM PST
Extended Forecast for

Winlock WA

  • Tonight

    Tonight: Areas of fog before 10pm. Widespread dense freezing fog, mainly between 10pm and 1am.  Otherwise, mostly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Dense
    Freezing Fog
    and Areas Fog

  • Wednesday

    Wednesday: Areas of freezing fog before 11am. Mostly sunny, with a high near 46. Calm wind.

    High: 46 °F

    Areas
    Freezing Fog
    then Sunny

  • Wednesday Night

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

    Low: 27 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 45. Calm wind.

    High: 45 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of fog before 10pm. Widespread dense freezing fog, mainly between 10pm and 1am. Otherwise, mostly cloudy, with a low around 27. Calm wind.
Wednesday
Areas of freezing fog before 11am. Mostly sunny, with a high near 46. Calm wind.
Wednesday Night
Partly cloudy, with a low around 27. Calm wind.
Thursday
Mostly sunny, with a high near 45. Calm wind.
Thursday Night
Partly cloudy, with a low around 26. Calm wind.
Friday
Mostly sunny, with a high near 44.
Friday Night
Mostly clear, with a low around 25.
Saturday
Sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
A slight chance of rain after 10am. Partly sunny, with a high near 43.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 33.
Monday
A chance of rain. Mostly cloudy, with a high near 46.
Monday Night
A chance of rain. Mostly cloudy, with a low around 36.
Tuesday
A slight chance of rain. Mostly cloudy, with a high near 49.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Winlock WA
 46.49°N 122.93°W (Elev. 400 ft)
7:01 pm PST Jan 20, 2026
8pm PST Jan 20, 2026-6pm PST Jan 27, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database