National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms in Portions of the Mississippi Valley and Great Lakes

A few severe thunderstorms with large hail, are expected across parts of the middle and upper Mississippi River Valley tonight through early morning. Snow and a wintry mix overnight in the Upper Midwest into the Great Lakes can cause hazardous travel conditions. Fire weather concerns continue for a large portion of the central and southern High Plains and Four Corners region this evening. Read More >

Current conditions at

Sioux Pass MT-16 MP 21 (MTSOO)

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

NA

22°F

-6°C

Humidity 73%
Wind Speed NW 3 MPH
Barometer NA
Dewpoint 15°F (-9°C)
Visibility NA
Last update 31 Mar 02:01 AM MDT
Extended Forecast for

Culbertson MT

  • Overnight

    Overnight: Partly cloudy, with a low around 18. Northwest wind 9 to 11 mph.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny through mid morning, then becoming sunny, with a high near 38. Northwest wind 5 to 10 mph becoming east in the afternoon.

    High: 38 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow, mainly after 5am. Cloudy, with a low around 24. East southeast wind 13 to 16 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Cloudy then
    Chance Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow before noon. Cloudy, with a high near 40. Southeast wind 15 to 17 mph, with gusts as high as 28 mph. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Chance Snow
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 29. East southeast wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 29 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of snow before 3pm, then a chance of rain and snow. Cloudy, with a high near 40. East southeast wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 40 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Rain and snow likely, becoming all snow after midnight. Cloudy, with a low around 26. East northeast wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 26 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Friday

    Friday: Snow likely. Mostly cloudy, with a high near 35. Northeast wind around 10 mph. Chance of precipitation is 70%.

    High: 35 °F

    Snow Likely

  • Friday Night

    Friday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 21. North wind 6 to 10 mph becoming west northwest after midnight.

    Low: 21 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 18. Northwest wind 9 to 11 mph.
Tuesday
Partly sunny through mid morning, then becoming sunny, with a high near 38. Northwest wind 5 to 10 mph becoming east in the afternoon.
Tuesday Night
A 30 percent chance of snow, mainly after 5am. Cloudy, with a low around 24. East southeast wind 13 to 16 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
Wednesday
A 30 percent chance of snow before noon. Cloudy, with a high near 40. Southeast wind 15 to 17 mph, with gusts as high as 28 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly cloudy, with a low around 29. East southeast wind 11 to 14 mph, with gusts as high as 24 mph.
Thursday
A chance of snow before 3pm, then a chance of rain and snow. Cloudy, with a high near 40. East southeast wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday Night
Rain and snow likely, becoming all snow after midnight. Cloudy, with a low around 26. East northeast wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Friday
Snow likely. Mostly cloudy, with a high near 35. Northeast wind around 10 mph. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 21. North wind 6 to 10 mph becoming west northwest after midnight.
Saturday
Mostly sunny, with a high near 43. West northwest wind 6 to 10 mph.
Saturday Night
Partly cloudy, with a low around 24. Northwest wind 5 to 8 mph becoming south in the evening.
Sunday
A slight chance of rain. Mostly sunny, with a high near 50.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Partly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Culbertson MT
 48.14°N 104.51°W (Elev. 1919 ft)
Last Update:
12:46 am MDT Mar 31, 2026
Forecast Valid:
2am MDT Mar 31, 2026-6pm MDT Apr 6, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation