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

27°F

-3°C

Humidity 85%
Wind Speed NNE 2 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility 1.24 mi
Last update 19 Jan 01:00 AM PST
Extended Forecast for

7 Miles S Wallace ID

Air Stagnation Advisory January 19, 01:25am until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 19, 01:25am until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Overnight

    Low: 21 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 31. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 31 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23. Southwest wind 3 to 5 mph.

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 32. East wind around 5 mph becoming calm  in the morning.

    High: 32 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 20. Light and variable wind.

    Low: 20 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 30.

    High: 30 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 21. Light and variable wind.
M.L.King Day
Mostly sunny, with a high near 31. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 23. Southwest wind 3 to 5 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 32. East wind around 5 mph becoming calm in the morning.
Tuesday Night
Partly cloudy, with a low around 20. Light and variable wind.
Wednesday
Mostly sunny, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Mostly cloudy, with a high near 30.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 27.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 19.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 27.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 20.
Sunday
A 50 percent chance of snow. Partly sunny, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles S Wallace ID
 47.38°N 115.92°W (Elev. 4987 ft)
1:13 am PST Jan 19, 2026
1am PST Jan 19, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database