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

28°F

-2°C

Humidity 91%
Wind Speed NE 1 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility 1.24 mi
Last update 20 Jan 10:30 PM PST
Extended Forecast for

11 Miles S Wallace ID

  • Tonight

    Tonight: Mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. Calm wind.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 20. Calm wind.

    Low: 20 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 30. Calm wind.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 15. Light east wind.

    Low: 15 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 25.

    High: 25 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 14.

    Low: 14 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 22. Calm wind.
Wednesday
Partly sunny, with a high near 32. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 20. Calm wind.
Thursday
Mostly sunny, with a high near 30. Calm wind.
Thursday Night
Partly cloudy, with a low around 15. Light east wind.
Friday
Sunny, with a high near 25.
Friday Night
Mostly clear, with a low around 14.
Saturday
Mostly sunny, with a high near 27.
Saturday Night
Partly cloudy, with a low around 17.
Sunday
Mostly sunny, with a high near 31.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 22.
Monday
A 40 percent chance of snow. Mostly cloudy, with a high near 32.
Monday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 25.
Tuesday
A 20 percent chance of snow. Partly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles S Wallace ID
 47.31°N 115.97°W (Elev. 4170 ft)
8:47 pm PST Jan 20, 2026
10pm PST Jan 20, 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