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

41°F

5°C

Humidity 66%
Wind Speed SE 2 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 12 Oct 03:39 PM MDT
Extended Forecast for

Roundup MT

  • Tonight

    Tonight: Areas of fog. Otherwise, mostly cloudy, with a low around 24. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 24 °F

    Areas Fog

  • Tuesday

    Tuesday: Patchy fog before noon. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 51. Southwest wind around 6 mph becoming calm in the morning.

    High: 51 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 24. Light and variable wind.

    Low: 24 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 59. Southwest wind 5 to 9 mph.

    High: 59 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 35. Calm wind becoming west northwest 5 to 8 mph after midnight.

    Low: 35 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 58. North wind 7 to 10 mph.

    High: 58 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30. Light and variable wind.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66. Southwest wind 6 to 16 mph.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40. Southwest wind 9 to 13 mph.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of fog. Otherwise, mostly cloudy, with a low around 24. Calm wind becoming south southwest around 5 mph after midnight.
Tuesday
Patchy fog before noon. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 51. Southwest wind around 6 mph becoming calm in the morning.
Tuesday Night
Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 24. Light and variable wind.
Wednesday
Patchy fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 59. Southwest wind 5 to 9 mph.
Wednesday Night
Mostly clear, with a low around 35. Calm wind becoming west northwest 5 to 8 mph after midnight.
Thursday
Sunny, with a high near 58. North wind 7 to 10 mph.
Thursday Night
Mostly clear, with a low around 30. Light and variable wind.
Friday
Sunny, with a high near 66. Southwest wind 6 to 16 mph.
Friday Night
Mostly clear, with a low around 40. Southwest wind 9 to 13 mph.
Saturday
Sunny, with a high near 74. Southwest wind 14 to 16 mph.
Saturday Night
Partly cloudy, with a low around 41. West southwest wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 69. West wind 3 to 5 mph.
Sunday Night
Partly cloudy, with a low around 39. North northeast wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 72. Southwest wind 7 to 9 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roundup MT
 46.45°N 108.56°W (Elev. 3202 ft)
Last Update:
12:32 pm MDT Oct 12, 2026
Forecast Valid:
3pm MDT Oct 12, 2026-6pm MDT Oct 19, 2026
 
Forecast Discussion
 
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Additional Resources

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