Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Rain

43°F

6°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 13 Mar 11:05 PM PDT
Extended Forecast for

Lewiston ID

Flood Advisory until March 14, 01:45pm
Click here for hazard details and duration
Flood Advisory
  •  
    Flood Advisory until March 14, 01:45pm

    NOW until 1:45pm Sat

    Flood Advisory

  • Tonight

    Low: 43 °F

    Rain

  • Saturday

    Saturday: Rain and snow before 10am, then a chance of snow between 10am and 5pm.  Steady temperature around 42. Windy, with a west wind 18 to 26 mph, with gusts as high as 38 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow and
    Breezy then
    Chance Snow
    and Windy

  • Saturday Night

    Saturday Night: A slight chance of snow between 8pm and 11pm.  Partly cloudy, with a low around 30. Breezy, with a southwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.  Chance of precipitation is 20%.

    Low: 30 °F

    Slight Chance
    Snow and
    Breezy then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 47. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 47 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 50 percent chance of rain.  Cloudy, with a low around 39. Southeast wind 3 to 5 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Chance Rain

  • Monday

    Monday: A 40 percent chance of rain.  Cloudy, with a high near 57.

    High: 57 °F

    Chance Rain

  • Monday Night

    Monday Night: A 40 percent chance of rain before 11pm.  Mostly cloudy, with a low around 45.

    Low: 45 °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

Detailed Forecast

Tonight
Rain. Steady temperature around 43. Southeast wind 9 to 13 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Rain and snow before 10am, then a chance of snow between 10am and 5pm. Steady temperature around 42. Windy, with a west wind 18 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday Night
A slight chance of snow between 8pm and 11pm. Partly cloudy, with a low around 30. Breezy, with a southwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
Sunday
Mostly cloudy, with a high near 47. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
A 50 percent chance of rain. Cloudy, with a low around 39. Southeast wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 40 percent chance of rain. Cloudy, with a high near 57.
Monday Night
A 40 percent chance of rain before 11pm. Mostly cloudy, with a low around 45.
Tuesday
A 20 percent chance of rain after 11am. Mostly cloudy, with a high near 67.
Tuesday Night
A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 48.
Wednesday
A 20 percent chance of rain before 11am. Partly sunny, with a high near 69.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 50.
Thursday
A 20 percent chance of rain. Mostly cloudy, with a high near 71.
Thursday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 50.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.39°N 117°W (Elev. 1385 ft)
7:47 pm PDT Mar 13, 2026
11pm PDT Mar 13, 2026-6pm PDT Mar 20, 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