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.

Mostly Cloudy

37°F

3°C

Humidity 56%
Wind Speed N 0 MPH
Barometer 30.37 in (1028.45 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 15 Mar 12:56 AM 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

  • Overnight

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 49. Calm wind becoming east around 6 mph in the afternoon.

    High: 49 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 50 percent chance of rain.  Cloudy, with a low around 39. East wind around 5 mph becoming calm.  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 59. Southeast wind around 6 mph.

    High: 59 °F

    Chance Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain before 11pm.  Mostly cloudy, with a low around 46. South wind around 7 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 68.

    High: 68 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around 29. South wind 3 to 6 mph.
Sunday
Increasing clouds, with a high near 49. Calm wind becoming east around 6 mph in the afternoon.
Sunday Night
A 50 percent chance of rain. Cloudy, with a low around 39. East wind around 5 mph becoming calm. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 30 percent chance of rain. Cloudy, with a high near 59. Southeast wind around 6 mph.
Monday Night
A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 46. South wind around 7 mph.
Tuesday
A 20 percent chance of rain after 11am. Mostly cloudy, with a high near 68.
Tuesday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 48.
Wednesday
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 73.
Thursday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 50.
Friday
Partly sunny, with a high near 74.
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
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.37°N 116.99°W (Elev. 1204 ft)
10:16 pm PDT Mar 14, 2026
1am PDT Mar 15, 2026-6pm PDT Mar 21, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database