National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring critical fire weather to the southern High Plains Friday. A winter storm will track across the Great Lakes and Northeast U.S. Friday into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Overcast

30°F

-1°C

Humidity 81%
Wind Speed SW 3 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 20 Feb 03:56 AM PST
Extended Forecast for

Lewiston ID

  • Overnight

    Overnight: A 20 percent chance of snow. Mostly cloudy, with a low around 27. West wind around 5 mph.

    Low: 27 °F

    Slight Chance
    Snow

  • Friday

    Friday: A 10 percent chance of snow before 7am. Mostly cloudy, with a high near 39. Northwest wind around 6 mph.

    High: 39 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 25. East wind around 6 mph.

    Low: 25 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 48. East wind 6 to 10 mph.

    High: 48 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32. Southeast wind around 8 mph.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 10 percent chance of rain after 4pm. Partly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

  • Monday

    Monday: Rain likely, mainly after 10am. Mostly cloudy, with a high near 55. Chance of precipitation is 70%.

    High: 55 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain. Low around 41. Chance of precipitation is 80%.

    Low: 41 °F

    Rain

Detailed Forecast

Overnight
A 20 percent chance of snow. Mostly cloudy, with a low around 27. West wind around 5 mph.
Friday
A 10 percent chance of snow before 7am. Mostly cloudy, with a high near 39. Northwest wind around 6 mph.
Friday Night
Mostly cloudy, with a low around 25. East wind around 6 mph.
Saturday
Partly sunny, with a high near 48. East wind 6 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 32. Southeast wind around 8 mph.
Sunday
A 10 percent chance of rain after 4pm. Partly sunny, with a high near 55.
Sunday Night
A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 39.
Monday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 55. Chance of precipitation is 70%.
Monday Night
Rain. Low around 41. Chance of precipitation is 80%.
Tuesday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 52. Chance of precipitation is 60%.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 34.
Wednesday
A 30 percent chance of rain. Mostly sunny, with a high near 52.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 36.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.37°N 116.99°W (Elev. 1204 ft)
Last Update:
2:47 am PST Feb 20, 2026
Forecast Valid:
4am PST Feb 20, 2026-6pm PST Feb 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation