Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Overcast

43°F

6°C

Humidity 41%
Wind Speed WNW 9 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 14 Mar 06:05 PM PDT
Extended Forecast for

Lewiston ID

Flood Advisory until March 15, 12:00pm
Click here for hazard details and duration
Flood Advisory
  •  
    Flood Advisory until March 15, 12:00pm

    NOW until 12:00pm Sun

    Flood Advisory

  • Tonight

    Low: 29 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 48. Calm wind becoming east around 6 mph in the afternoon.

    High: 48 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 50 percent chance of rain.  Cloudy, with a low around 39. Calm wind becoming southeast around 5 mph after midnight.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Chance Rain

  • Monday

    Monday: A 30 percent chance of rain.  Cloudy, with a high near 58. Southeast wind around 6 mph.

    High: 58 °F

    Chance Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain before 11pm.  Mostly cloudy, with a low around 46. Southeast wind around 6 mph.

    Low: 46 °F

    Chance Rain
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after 11am.  Mostly cloudy, with a high near 67.

    High: 67 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain after 11am.  Partly sunny, with a high near 70.

    High: 70 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 29. Breezy, with a west wind 16 to 21 mph becoming light and variable after midnight. Winds could gust as high as 31 mph.
Sunday
Increasing clouds, with a high near 48. Calm wind becoming east around 6 mph in the afternoon.
Sunday Night
A 50 percent chance of rain. Cloudy, with a low around 39. Calm wind becoming southeast around 5 mph after midnight. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 30 percent chance of rain. Cloudy, with a high near 58. Southeast wind around 6 mph.
Monday Night
A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 46. Southeast wind around 6 mph.
Tuesday
A 20 percent chance of rain after 11am. Mostly cloudy, with a high near 67.
Tuesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 48.
Wednesday
A 20 percent chance of rain after 11am. Partly sunny, with a high near 70.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 51.
Thursday
A 20 percent chance of rain. Mostly cloudy, with a high near 72.
Thursday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 50.
Friday
Partly sunny, with a high near 73.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 51.
Saturday
A 20 percent chance of rain. Mostly cloudy, with a high near 72.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.39°N 117°W (Elev. 1385 ft)
6:07 pm PDT Mar 14, 2026
6pm PDT Mar 14, 2026-6pm PDT Mar 21, 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