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

30°F

-1°C

Humidity 71%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility 1.24 mi
Last update 21 Jan 12:00 PM PST
Extended Forecast for

12 Miles SSW Wallace ID

  • This Afternoon

    This Afternoon: Partly sunny, with a temperature falling to around 26 by 5pm. Calm wind.

    High: 29 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. Light northeast wind.

    Low: 21 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 28. East wind around 5 mph.

    High: 28 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 12. East wind around 7 mph.

    Low: 12 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 21. Northeast wind around 7 mph.

    High: 21 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 11.

    Low: 11 °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 13.

    Low: 13 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a temperature falling to around 26 by 5pm. Calm wind.
Tonight
Mostly cloudy, with a low around 21. Light northeast wind.
Thursday
Mostly sunny, with a high near 28. East wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 12. East wind around 7 mph.
Friday
Sunny, with a high near 21. Northeast wind around 7 mph.
Friday Night
Mostly clear, with a low around 11.
Saturday
Sunny, with a high near 23.
Saturday Night
Partly cloudy, with a low around 13.
Sunday
Mostly sunny, with a high near 27.
Sunday Night
A 20 percent chance of snow after 10pm. Partly cloudy, with a low around 19.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 30.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 23.
Tuesday
A 20 percent chance of snow. Partly sunny, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles SSW Wallace ID
 47.32°N 116.03°W (Elev. 4747 ft)
8:52 am PST Jan 21, 2026
12pm 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