Heavy Rain in the Southern U.S.; Winter Storm to Impact the Northern Mid-Atlantic and Interior Northeast

A storm system stretching from the Tennessee Valley to the Gulf Coast will bring a variety of hazards to the Eastern U.S. through Tuesday. On the south side of the system, heavy rain and thunderstorms will persist across the Southern U.S. Further north, a wintry precipitation mix is expected from the Central Appalachians to the interior Northeast through Tuesday. Read More >

Current conditions at

Sioux Pass MT-16 MP 21 (MTSOO)

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

unknown precip

29°F

-2°C

Humidity 78%
Wind Speed W 11 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill19°F (-7°C)
Last update 02 Dec 03:00 AM MST
Extended Forecast for

15 Miles NNW Sidney MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 6. West wind around 14 mph, with gusts as high as 23 mph.

    Low: 6 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow before 10am, then a slight chance of snow after 5pm.  Mostly cloudy, with a high near 33. West wind 15 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 20%.

    High: 33 °F

    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before 8pm.  Mostly cloudy, with a low around -7. North wind 7 to 15 mph, with gusts as high as 24 mph.

    Low: -7 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 9. Wind chill values between -5 and -15. North wind around 6 mph becoming south southwest in the afternoon.

    High: 9 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -3. South wind 6 to 9 mph.

    Low: -3 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 30. West wind 13 to 17 mph, with gusts as high as 28 mph.

    High: 30 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly after 11pm.  Mostly cloudy, with a low around 19. West wind 10 to 13 mph, with gusts as high as 21 mph.  New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Chance Snow

  • Friday

    Friday: A 20 percent chance of snow.  Mostly cloudy, with a high near 29. North northwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 29 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: A 50 percent chance of snow.  Cloudy, with a low around 3. East northeast wind 7 to 9 mph.

    Low: 3 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 6. West wind around 14 mph, with gusts as high as 23 mph.
Tuesday
A slight chance of snow before 10am, then a slight chance of snow after 5pm. Mostly cloudy, with a high near 33. West wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tuesday Night
A 20 percent chance of snow before 8pm. Mostly cloudy, with a low around -7. North wind 7 to 15 mph, with gusts as high as 24 mph.
Wednesday
Mostly sunny, with a high near 9. Wind chill values between -5 and -15. North wind around 6 mph becoming south southwest in the afternoon.
Wednesday Night
Mostly cloudy, with a low around -3. South wind 6 to 9 mph.
Thursday
Partly sunny, with a high near 30. West wind 13 to 17 mph, with gusts as high as 28 mph.
Thursday Night
A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 19. West wind 10 to 13 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.
Friday
A 20 percent chance of snow. Mostly cloudy, with a high near 29. North northwest wind 10 to 14 mph, with gusts as high as 24 mph.
Friday Night
A 50 percent chance of snow. Cloudy, with a low around 3. East northeast wind 7 to 9 mph.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 15. East northeast wind 9 to 11 mph.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 1. East wind 6 to 9 mph becoming south southeast after midnight.
Sunday
Partly sunny, with a high near 25.
Sunday Night
Mostly cloudy, with a low around 11.
Monday
Mostly sunny, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NNW Sidney MT
 47.9°N 104.33°W (Elev. 2398 ft)
2:51 am MST Dec 2, 2025
3am MST Dec 2, 2025-6pm MST Dec 8, 2025
 
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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