Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Current conditions at

Sioux Pass MT-16 MP 21 (MTSOO)

Lat: 47.91973°NLon: 104.32619°WElev: 2480.0ft.

NA

-19°F

-28°C

Humidity 68%
Wind Speed N 0 MPH
Barometer NA
Dewpoint -26°F (-32°C)
Visibility NA
Last update 22 Jan 05:45 PM MST
Extended Forecast for

8 Miles NNE Lambert MT

Extreme Cold Warning January 22, 06:04pm until January 25, 01:00pm
Click here for hazard details and duration
Extreme Cold Warning
  •  
    Extreme Cold Warning January 22, 06:04pm until January 25, 01:00pm

    NOW until 1:00pm Sun

    Extreme Cold Warning

  • Tonight

    Low: -30 °F

    Clear

  • Friday

    Friday: Increasing clouds and cold, with a high near -10. Wind chill values between -25 and -35. Calm wind becoming southeast around 5 mph in the afternoon.

    High: -10 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around -19. Wind chill values between -25 and -30. Light south southwest wind.

    Low: -19 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 3. Wind chill values between -15 and -25. Light and variable wind becoming north around 6 mph in the afternoon.

    High: 3 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around -21. North wind 3 to 6 mph.

    Low: -21 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 6. Light and variable wind becoming southwest 5 to 9 mph in the morning.

    High: 6 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -4. West southwest wind 8 to 13 mph, with gusts as high as 20 mph.

    Low: -4 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 17. Northwest wind around 14 mph, with gusts as high as 21 mph.

    High: 17 °F

    Partly Sunny

Detailed Forecast

Tonight
Clear, with a low around -30. Wind chill values between -35 and -40. North wind 5 to 10 mph becoming light north northeast after midnight.
Friday
Increasing clouds and cold, with a high near -10. Wind chill values between -25 and -35. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around -19. Wind chill values between -25 and -30. Light south southwest wind.
Saturday
Partly sunny, with a high near 3. Wind chill values between -15 and -25. Light and variable wind becoming north around 6 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around -21. North wind 3 to 6 mph.
Sunday
Sunny, with a high near 6. Light and variable wind becoming southwest 5 to 9 mph in the morning.
Sunday Night
Partly cloudy, with a low around -4. West southwest wind 8 to 13 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 17. Northwest wind around 14 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 1. West northwest wind 6 to 8 mph.
Tuesday
Mostly cloudy, with a high near 14. Northwest wind 6 to 9 mph.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -2. Northwest wind 6 to 8 mph.
Wednesday
Partly sunny, with a high near 11.
Wednesday Night
Mostly cloudy, with a low around -5.
Thursday
Mostly sunny, with a high near 10.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNE Lambert MT
 47.78°N 104.57°W (Elev. 2500 ft)
1:57 pm MST Jan 22, 2026
6pm MST Jan 22, 2026-6pm MST Jan 29, 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