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

54°F

12°C

Humidity 69%
Wind Speed SW 3 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 02 Oct 09:39 AM MDT
Extended Forecast for

Roundup MT

  • Today

    Today: Sunny, with a high near 79. Southwest wind 9 to 13 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 47. West northwest wind 5 to 8 mph becoming light and variable.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 68. West northwest wind 7 to 10 mph becoming east in the afternoon.

    High: 68 °F

    Sunny

  • Saturday Night

    Saturday Night: Cloudy during the early evening, then gradual clearing, with a low around 41. East wind 5 to 7 mph becoming calm in the evening.

    Low: 41 °F

    Gradual
    Clearing

  • Sunday

    Sunday: Sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. Calm wind becoming southwest 5 to 7 mph after midnight.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 86. Southwest wind 9 to 13 mph.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52. West wind around 6 mph becoming calm.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79. West southwest wind 6 to 9 mph.

    High: 79 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 79. Southwest wind 9 to 13 mph.
Tonight
Mostly clear, with a low around 47. West northwest wind 5 to 8 mph becoming light and variable.
Saturday
Sunny, with a high near 68. West northwest wind 7 to 10 mph becoming east in the afternoon.
Saturday Night
Cloudy during the early evening, then gradual clearing, with a low around 41. East wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 45. Calm wind becoming southwest 5 to 7 mph after midnight.
Monday
Mostly sunny, with a high near 86. Southwest wind 9 to 13 mph.
Monday Night
Partly cloudy, with a low around 52. West wind around 6 mph becoming calm.
Tuesday
Sunny, with a high near 79. West southwest wind 6 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 47. North northeast wind 5 to 8 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 76. West southwest wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 45. North wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 75. Southwest wind 5 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Roundup MT
 46.45°N 108.53°W (Elev. 3219 ft)
Last Update:
12:32 am MDT Oct 2, 2026
Forecast Valid:
10am MDT Oct 2, 2026-6pm MDT Oct 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation