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

Wallace Viaduct (ITD90)

Lat: 47.47432°NLon: 115.90816°WElev: 2792.0ft.

NA

28°F

-2°C

Humidity 78%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility 1.24 mi
Last update 19 Jan 09:00 PM PST
Extended Forecast for

8 Miles SSW Wallace ID

Air Stagnation Advisory January 19, 09:23pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 19, 09:23pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 22 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 30. Southwest wind around 6 mph becoming light and variable  in the afternoon.

    High: 30 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 19. South wind around 6 mph.

    Low: 19 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 28. East wind 3 to 6 mph.

    High: 28 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 20. Southeast wind around 6 mph.

    Low: 20 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 28.

    High: 28 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 22. Southwest wind around 7 mph.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 30. Southwest wind around 6 mph becoming light and variable in the afternoon.
Tuesday Night
Mostly clear, with a low around 19. South wind around 6 mph.
Wednesday
Mostly sunny, with a high near 28. East wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 20. Southeast wind around 6 mph.
Thursday
Mostly cloudy, with a high near 28.
Thursday Night
Mostly cloudy, with a low around 16.
Friday
Mostly sunny, with a high near 25.
Friday Night
A 10 percent chance of snow after 4am. Partly cloudy, with a low around 15.
Saturday
A 30 percent chance of snow, mainly between 10am and 4pm. Mostly sunny, with a high near 26.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 20.
Sunday
A 50 percent chance of snow. Mostly cloudy, with a high near 29.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 25.
Monday
A 50 percent chance of snow. Mostly cloudy, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SSW Wallace ID
 47.35°N 115.98°W (Elev. 5272 ft)
9:02 pm PST Jan 19, 2026
9pm PST Jan 19, 2026-6pm PST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database