National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Northeast; Heavy Rain Returns to California

An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on New Year's Eve into New Year's Day. Read More >

Hazardous Weather Conditions

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Clear

36°F

2°C

Humidity 69%
Wind Speed E 3 MPH
Barometer 30.34 in (1027.43 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 30 Dec 05:35 PM PST
Extended Forecast for

2 Miles WSW Lewiston ID

Air Stagnation Advisory until January 1, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory until January 1, 12:00pm

    NOW until 12:00pm Thu

    Air Stagnation Advisory

  • This Afternoon

    High: 37 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 29. Light east wind.

    Low: 29 °F

    Mostly Clear

  • Wednesday

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

    High: 41 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 41. Calm wind.

    High: 41 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 40 percent chance of rain after 10pm. Cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

  • Friday

    Friday: A 50 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 46.

    High: 46 °F

    Chance Rain
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

Detailed Forecast

This Afternoon
Sunny, with a steady temperature around 37. Calm wind.
Tonight
Mostly clear, with a low around 29. Light east wind.
Wednesday
Partly sunny, with a high near 41. Calm wind.
Wednesday Night
Partly cloudy, with a low around 31. Calm wind.
New Year's Day
Mostly cloudy, with a high near 41. Calm wind.
Thursday Night
A 40 percent chance of rain after 10pm. Cloudy, with a low around 36.
Friday
A 50 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 46.
Friday Night
A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 40.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 50.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 38.
Sunday
A 20 percent chance of rain. Partly sunny, with a high near 47.
Sunday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 35.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 46.
Monday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 36.
Tuesday
A 20 percent chance of rain. Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Lewiston ID
 46.38°N 117.03°W (Elev. 1201 ft)
Last Update:
3:27 pm PST Dec 30, 2025
Forecast Valid:
5pm PST Dec 30, 2025-6pm PST Jan 6, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation