Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Current conditions at

Sioux Pass MT-16 MP 21 (MTSOO)

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

NA

21°F

-6°C

Humidity 82%
Wind Speed SSE 27 MPH
Barometer NA
Dewpoint 16°F (-9°C)
Visibility NA
Wind Chill3°F (-16°C)
Last update 31 Jan 01:00 AM MST
Extended Forecast for

8 Miles NNE Lambert MT

Winter Weather Advisory until January 31, 02:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 31, 02:00pm

    NOW until 2:00pm Sat

    Winter Weather Advisory

  • Overnight

    Low: 18 °F

    Rain/Freezing
    Rain Likely
    and Patchy
    Freezing Fog

  • Saturday

    Saturday: Rain likely, mainly before noon.  Cloudy through mid morning, then gradual clearing, with a high near 42. Breezy, with a west northwest wind 20 to 28 mph, with gusts as high as 39 mph.  Chance of precipitation is 60%.

    High: 42 °F

    Breezy. Rain
    Likely then
    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24. Breezy, with a west northwest wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 33 mph.

    Low: 24 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 35. West northwest wind 5 to 9 mph becoming east southeast in the afternoon.

    High: 35 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 23. Southeast wind 6 to 8 mph.

    Low: 23 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of snow before 11am, then a slight chance of rain.  Mostly sunny, with a high near 41. South southwest wind 9 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.  Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21. Northwest wind 8 to 13 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 36. West northwest wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 36 °F

    Partly Sunny

Detailed Forecast

Overnight
Freezing rain likely before 5am, then rain or freezing rain likely. Patchy freezing fog between 2am and 3am. Cloudy, with a low around 18. South wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. Total nighttime ice accumulation of less than a 0.1 of an inch possible.
Saturday
Rain likely, mainly before noon. Cloudy through mid morning, then gradual clearing, with a high near 42. Breezy, with a west northwest wind 20 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 24. Breezy, with a west northwest wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 33 mph.
Sunday
Partly sunny, with a high near 35. West northwest wind 5 to 9 mph becoming east southeast in the afternoon.
Sunday Night
Mostly cloudy, with a low around 23. Southeast wind 6 to 8 mph.
Monday
A slight chance of snow before 11am, then a slight chance of rain. Mostly sunny, with a high near 41. South southwest wind 9 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 21. Northwest wind 8 to 13 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 36. West northwest wind 9 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 21. West northwest wind 7 to 10 mph.
Wednesday
Partly sunny, with a high near 42. Southwest wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 30. West wind 9 to 14 mph, with gusts as high as 22 mph.
Thursday
Mostly sunny, with a high near 46.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Mostly sunny, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNE Lambert MT
 47.78°N 104.57°W (Elev. 2500 ft)
8:06 pm MST Jan 30, 2026
1am MST Jan 31, 2026-6pm MST Feb 6, 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