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

HORSE THIEF (HORM8)

Lat: 46.42581°NLon: 108.6745°WElev: 3414.0ft.

NA

36°F

2°C

Humidity 38%
Wind Speed WSW 8 MPH
Barometer NA
Dewpoint 13°F (-11°C)
Visibility NA
Wind Chill30°F (-1°C)
Last update 24 Apr 08:39 AM MDT
Extended Forecast for

Roundup MT

  • Today

    Today: A 30 percent chance of snow showers, mainly after 2pm. Mostly cloudy, with a high near 43. Northwest wind 17 to 25 mph. Little or no snow accumulation expected.

    High: 43 °F

    Partly Sunny
    then Chance
    Snow Showers

  • Tonight

    Tonight: A 20 percent chance of snow showers before 7pm. Mostly cloudy, with a low around 24. West wind 18 to 23 mph decreasing to 7 to 12 mph after midnight.

    Low: 24 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 49. West wind 6 to 8 mph becoming southeast in the afternoon.

    High: 49 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 26. Northeast wind 8 to 10 mph.

    Low: 26 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Sunday

    Sunday: Snow showers likely, mainly after noon. Mostly cloudy, with a high near 43. North northeast wind 9 to 14 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Snow Showers
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around 27. North northeast wind 5 to 10 mph. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance Snow
    Showers

  • Monday

    Monday: A chance of snow showers before 3pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 48. Light and variable wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 48 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after noon. Partly sunny, with a high near 57. Light and variable wind becoming northwest 5 to 7 mph in the morning.

    High: 57 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A 30 percent chance of snow showers, mainly after 2pm. Mostly cloudy, with a high near 43. Northwest wind 17 to 25 mph. Little or no snow accumulation expected.
Tonight
A 20 percent chance of snow showers before 7pm. Mostly cloudy, with a low around 24. West wind 18 to 23 mph decreasing to 7 to 12 mph after midnight.
Saturday
Partly sunny, with a high near 49. West wind 6 to 8 mph becoming southeast in the afternoon.
Saturday Night
A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 26. Northeast wind 8 to 10 mph.
Sunday
Snow showers likely, mainly after noon. Mostly cloudy, with a high near 43. North northeast wind 9 to 14 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 27. North northeast wind 5 to 10 mph. New snow accumulation of less than a half inch possible.
Monday
A chance of snow showers before 3pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 48. Light and variable wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.
Monday Night
Mostly cloudy, with a low around 29. Calm wind.
Tuesday
A 30 percent chance of showers after noon. Partly sunny, with a high near 57. Light and variable wind becoming northwest 5 to 7 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 32. North wind 5 to 8 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 58. Light northwest wind becoming north 6 to 11 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 33. North wind 5 to 10 mph becoming light north northwest after midnight.
Thursday
Mostly sunny, with a high near 60. Calm wind becoming north 5 to 8 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roundup MT
 46.45°N 108.53°W (Elev. 3219 ft)
Last Update:
9:38 am MDT Apr 24, 2026
Forecast Valid:
9am MDT Apr 24, 2026-6pm MDT Apr 30, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation