Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Mist

39°F

4°C

Humidity 64%
Wind Speed N 0 MPH
Barometer 29.71 in (1006.1 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 18 Feb 04:05 PM PST
Extended Forecast for

Lewiston ID

  • Tonight

    Tonight: Partly cloudy, with a low around 24. West wind around 6 mph becoming light and variable  in the evening.

    Low: 24 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 40. East wind 3 to 5 mph.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow after 10pm.  Mostly cloudy, with a low around 28. Light southwest wind.  Little or no snow accumulation expected.

    Low: 28 °F

    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow, mainly before 10am.  Partly sunny, with a high near 39. Calm wind becoming northwest around 6 mph in the afternoon.  Little or no snow accumulation expected.

    High: 39 °F

    Chance Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25. Southeast wind 3 to 5 mph.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of rain after 10pm.  Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 24. West wind around 6 mph becoming light and variable in the evening.
Thursday
Mostly sunny, with a high near 40. East wind 3 to 5 mph.
Thursday Night
A 30 percent chance of snow after 10pm. Mostly cloudy, with a low around 28. Light southwest wind. Little or no snow accumulation expected.
Friday
A 30 percent chance of snow, mainly before 10am. Partly sunny, with a high near 39. Calm wind becoming northwest around 6 mph in the afternoon. Little or no snow accumulation expected.
Friday Night
Partly cloudy, with a low around 25. Southeast wind 3 to 5 mph.
Saturday
Partly sunny, with a high near 44.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
Partly sunny, with a high near 49.
Sunday Night
A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 36.
Monday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 53. Chance of precipitation is 60%.
Monday Night
Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 49.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 34.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 50. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.39°N 117°W (Elev. 1385 ft)
2:47 pm PST Feb 18, 2026
4pm PST Feb 18, 2026-6pm PST Feb 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database