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

71°F

22°C

Humidity 31%
Wind Speed WNW 14 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 11 Jun 01:39 PM MDT
Extended Forecast for

Roundup MT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 73. West northwest wind 10 to 13 mph.

    High: 73 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Northwest wind 5 to 9 mph becoming calm.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73. Light and variable wind becoming north 9 to 14 mph in the morning.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers, mainly between 11pm and 4am. Mostly cloudy, with a low around 44. North wind 8 to 15 mph.

    Low: 44 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 64. North northwest wind 10 to 15 mph.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40. North wind 8 to 13 mph becoming light and variable after midnight.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 71. Calm wind becoming north around 5 mph in the afternoon.

    High: 71 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45. North wind around 6 mph becoming calm in the evening.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 76. West wind 5 to 10 mph becoming north northwest in the afternoon.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 73. West northwest wind 10 to 13 mph.
Tonight
Partly cloudy, with a low around 44. Northwest wind 5 to 9 mph becoming calm.
Friday
Mostly sunny, with a high near 73. Light and variable wind becoming north 9 to 14 mph in the morning.
Friday Night
A 40 percent chance of showers, mainly between 11pm and 4am. Mostly cloudy, with a low around 44. North wind 8 to 15 mph.
Saturday
Mostly sunny, with a high near 64. North northwest wind 10 to 15 mph.
Saturday Night
Partly cloudy, with a low around 40. North wind 8 to 13 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 71. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 45. North wind around 6 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 76. West wind 5 to 10 mph becoming north northwest in the afternoon.
Monday Night
Partly cloudy, with a low around 52. North northwest wind 5 to 10 mph becoming light and variable.
Tuesday
Partly sunny, with a high near 83. West southwest wind 7 to 14 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 56. West wind 6 to 11 mph.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78. West northwest wind 10 to 20 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:
12:38 pm MDT Jun 11, 2026
Forecast Valid:
2pm MDT Jun 11, 2026-6pm MDT Jun 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation