Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Clear

45°F

7°C

Humidity 65%
Wind Speed N 0 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 29 Jan 05:20 PM PST
Extended Forecast for

Lewiston ID

  • Tonight

    Tonight: A slight chance of rain before 10pm, then a slight chance of rain after 1am.  Cloudy, with a low around 40. East wind around 5 mph.  Chance of precipitation is 20%.

    Low: 40 °F

    Slight Chance
    Rain

  • Friday

    Friday: A 10 percent chance of rain before 7am.  Cloudy, with a high near 52. East wind around 6 mph becoming south in the afternoon.

    High: 52 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. South wind 3 to 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 54. Southeast wind 3 to 6 mph.

    High: 54 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. Southeast wind around 6 mph.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 20 percent chance of rain after 10pm.  Mostly cloudy, with a low around 38.

    Low: 38 °F

    Slight Chance
    Rain

  • Monday

    Monday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of rain before 10pm, then a slight chance of rain after 1am. Cloudy, with a low around 40. East wind around 5 mph. Chance of precipitation is 20%.
Friday
A 10 percent chance of rain before 7am. Cloudy, with a high near 52. East wind around 6 mph becoming south in the afternoon.
Friday Night
Mostly cloudy, with a low around 38. South wind 3 to 5 mph.
Saturday
Mostly cloudy, with a high near 54. Southeast wind 3 to 6 mph.
Saturday Night
Mostly cloudy, with a low around 38. Southeast wind around 6 mph.
Sunday
Mostly cloudy, with a high near 52.
Sunday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 51.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
Mostly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.39°N 117°W (Elev. 1385 ft)
2:48 pm PST Jan 29, 2026
5pm PST Jan 29, 2026-6pm PST Feb 5, 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