Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Overcast

33°F

1°C

Humidity 69%
Wind Speed NE 6 MPH
Barometer 30.5 in (1032.85 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 19 Jan 12:56 PM PST
Extended Forecast for

Lewiston ID

Air Stagnation Advisory January 19, 01:14pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 19, 01:14pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • M.L.King Day

    High: 39 °F

    Areas Fog

  • Tonight

    Tonight: Increasing clouds, with a low around 28. Calm wind.

    Low: 28 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 40. Calm wind.

    High: 40 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 41. Calm wind.

    High: 41 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

M.L.King Day
Areas of fog before 3pm. Otherwise, sunny, with a high near 39. Calm wind.
Tonight
Increasing clouds, with a low around 28. Calm wind.
Tuesday
Partly sunny, with a high near 40. Calm wind.
Tuesday Night
Partly cloudy, with a low around 27. Calm wind.
Wednesday
Mostly sunny, with a high near 41. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Mostly cloudy, with a high near 41.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 39.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
Partly sunny, with a high near 40.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.39°N 117°W (Elev. 1385 ft)
8:27 am PST Jan 19, 2026
1pm PST Jan 19, 2026-6pm PST Jan 25, 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