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

26°F

-3°C

Humidity 91%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 24 Oct 05:39 AM MDT
Extended Forecast for

Roundup MT

  • Today

    Today: Sunny, with a high near 51. West southwest wind 6 to 8 mph becoming south southeast in the afternoon.

    High: 51 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 25. Light and variable wind.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 48. North northeast wind 5 to 9 mph.

    High: 48 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30. East northeast wind 3 to 6 mph.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 51. Calm wind becoming east southeast 5 to 7 mph in the afternoon.

    High: 51 °F

    Partly Sunny

  • Monday Night

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

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers. Mostly cloudy, with a high near 51. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 51 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 31. West wind around 7 mph.

    Low: 31 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53. West wind around 8 mph.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 51. West southwest wind 6 to 8 mph becoming south southeast in the afternoon.
Tonight
Mostly clear, with a low around 25. Light and variable wind.
Sunday
Sunny, with a high near 48. North northeast wind 5 to 9 mph.
Sunday Night
Partly cloudy, with a low around 30. East northeast wind 3 to 6 mph.
Monday
Partly sunny, with a high near 51. Calm wind becoming east southeast 5 to 7 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 29. Light east wind.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 51. Calm wind becoming west 5 to 8 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 31. West wind around 7 mph.
Wednesday
Mostly sunny, with a high near 53. West wind around 8 mph.
Wednesday Night
Partly cloudy, with a low around 25. Northeast wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 48. North wind 5 to 7 mph becoming east in the afternoon.
Thursday Night
Mostly cloudy, with a low around 26. East northeast wind around 6 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 50. Calm wind becoming north around 5 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:
3:23 am MDT Oct 24, 2026
Forecast Valid:
6am MDT Oct 24, 2026-6pm MDT Oct 30, 2026
 
Forecast Discussion
 
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Additional Resources

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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