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

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

Lat: 46.37472°NLon: 117.01444°WElev: 1437.0ft.

Overcast

32°F

0°C

Humidity 69%
Wind Speed S 4 MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 21 Jan 03:35 PM PST
Extended Forecast for

Lewiston ID

  • Tonight

    Tonight: Cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 35. Calm wind.

    High: 35 °F

    Cloudy

  • Thursday Night

    Thursday Night: Cloudy, then gradually becoming partly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 34. Northeast wind 3 to 5 mph.

    High: 34 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 21. Light southwest wind.

    Low: 21 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 30. Calm wind.
Thursday
Cloudy, with a high near 35. Calm wind.
Thursday Night
Cloudy, then gradually becoming partly cloudy, with a low around 25. Calm wind.
Friday
Mostly sunny, with a high near 34. Northeast wind 3 to 5 mph.
Friday Night
Mostly clear, with a low around 21. Light southwest wind.
Saturday
Sunny, with a high near 34.
Saturday Night
Mostly clear, with a low around 22.
Sunday
Mostly sunny, with a high near 37.
Sunday Night
Partly cloudy, with a low around 25.
Monday
Partly sunny, with a high near 39.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
A 10 percent chance of rain. Mostly cloudy, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.39°N 117°W (Elev. 1385 ft)
1:12 pm PST Jan 21, 2026
3pm PST Jan 21, 2026-6pm PST Jan 28, 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