Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Wallace Viaduct (ITD90)

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

NA

29°F

-2°C

Humidity 66%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility 1.24 mi
Last update 21 Jan 10:45 AM PST
Extended Forecast for

7 Miles S Wallace ID

  • Today

    Today: Partly sunny, with a high near 28. Calm wind.

    High: 28 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 19. Light east wind.

    Low: 19 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 27. East wind around 5 mph.

    High: 27 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 11. East wind around 7 mph.

    Low: 11 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 20. East wind around 7 mph.

    High: 20 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 23.

    High: 23 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 28. Calm wind.
Tonight
Mostly cloudy, with a low around 19. Light east wind.
Thursday
Mostly sunny, with a high near 27. East wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 11. East wind around 7 mph.
Friday
Sunny, with a high near 20. East wind around 7 mph.
Friday Night
Mostly clear, with a low around 10.
Saturday
Sunny, with a high near 23.
Saturday Night
Partly cloudy, with a low around 12.
Sunday
Mostly sunny, with a high near 26.
Sunday Night
A 20 percent chance of snow after 10pm. Partly cloudy, with a low around 17.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 29.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 21.
Tuesday
A 20 percent chance of snow. Partly sunny, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles S Wallace ID
 47.38°N 115.92°W (Elev. 4987 ft)
8:52 am PST Jan 21, 2026
11am PST Jan 21, 2026-6pm PST Jan 27, 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