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

73°F

23°C

Humidity 24%
Wind Speed WNW 5 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 19 Mar 06:39 PM MDT
Extended Forecast for

Roundup MT

  • Tonight

    Tonight: Partly cloudy, with a low around 50. West southwest wind 9 to 15 mph.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80. West southwest wind 9 to 14 mph increasing to 20 to 25 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47. Southwest wind 7 to 13 mph.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after noon. Mostly cloudy, with a high near 71. West southwest wind 5 to 15 mph becoming north northeast in the afternoon.

    High: 71 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of rain showers before 3am, then a slight chance of rain and snow showers. Mostly cloudy, then gradually becoming mostly clear, with a low around 33. North wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance
    Showers then
    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: Sunny, with a high near 59. Light west northwest wind increasing to 5 to 9 mph in the morning.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31. Northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 31 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 62. West southwest wind 3 to 8 mph.

    High: 62 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36. Northeast wind 5 to 7 mph becoming light and variable after midnight.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. West southwest wind 9 to 15 mph.
Friday
Mostly sunny, with a high near 80. West southwest wind 9 to 14 mph increasing to 20 to 25 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 47. Southwest wind 7 to 13 mph.
Saturday
A 30 percent chance of showers after noon. Mostly cloudy, with a high near 71. West southwest wind 5 to 15 mph becoming north northeast in the afternoon.
Saturday Night
A chance of rain showers before 3am, then a slight chance of rain and snow showers. Mostly cloudy, then gradually becoming mostly clear, with a low around 33. North wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Chance of precipitation is 40%. Little or no snow accumulation expected.
Sunday
Sunny, with a high near 59. Light west northwest wind increasing to 5 to 9 mph in the morning.
Sunday Night
Partly cloudy, with a low around 31. Northwest wind 5 to 8 mph becoming calm after midnight.
Monday
Partly sunny, with a high near 62. West southwest wind 3 to 8 mph.
Monday Night
Mostly cloudy, with a low around 36. Northeast wind 5 to 7 mph becoming light and variable after midnight.
Tuesday
Mostly cloudy, with a high near 64. West southwest wind 5 to 9 mph becoming south southeast in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 42. West southwest wind 5 to 7 mph.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 69. West southwest wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon.
Wednesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 31. Northwest wind 15 to 21 mph. Chance of precipitation is 30%.
Thursday
A 20 percent chance of snow showers. Mostly sunny, with a high near 50. West northwest wind 10 to 17 mph.
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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:
5:10 pm MDT Mar 19, 2026
Forecast Valid:
7pm MDT Mar 19, 2026-6pm MDT Mar 26, 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