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

N/A

Humidity 77%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 21 Feb 05:39 AM MST
Extended Forecast for

Roundup MT

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 52. West wind 7 to 12 mph increasing to 17 to 22 mph in the afternoon.

    High: 52 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 33. West wind 17 to 22 mph.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 57. West wind 22 to 30 mph, with gusts as high as 41 mph.

    High: 57 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37. West wind 21 to 25 mph.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of snow after 11am. Mostly sunny, with a high near 55. Northwest wind 15 to 17 mph.

    High: 55 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: Snow likely, mainly after 11pm. Mostly cloudy, with a low around 18. North northeast wind 9 to 14 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 18 °F

    Snow Likely

  • Saturday

    Saturday: A 50 percent chance of snow before 11am. Mostly cloudy, with a high near 36. East northeast wind around 9 mph. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Chance Snow
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 16. East wind 5 to 9 mph becoming light and variable in the evening.

    Low: 16 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 45. Light and variable wind becoming northeast 5 to 7 mph in the afternoon.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 52. West wind 7 to 12 mph increasing to 17 to 22 mph in the afternoon.
Tonight
Mostly clear, with a low around 33. West wind 17 to 22 mph.
Thursday
Mostly sunny, with a high near 57. West wind 22 to 30 mph, with gusts as high as 41 mph.
Thursday Night
Partly cloudy, with a low around 37. West wind 21 to 25 mph.
Friday
A 20 percent chance of snow after 11am. Mostly sunny, with a high near 55. Northwest wind 15 to 17 mph.
Friday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 18. North northeast wind 9 to 14 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday
A 50 percent chance of snow before 11am. Mostly cloudy, with a high near 36. East northeast wind around 9 mph. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly cloudy, with a low around 16. East wind 5 to 9 mph becoming light and variable in the evening.
Sunday
Mostly sunny, with a high near 45. Light and variable wind becoming northeast 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 23. East wind around 6 mph becoming light and variable.
Monday
Sunny, with a high near 58. Southwest wind 6 to 10 mph.
Monday Night
Mostly clear, with a low around 27. West wind 5 to 7 mph.
Tuesday
Sunny, with a high near 61. Southwest wind 6 to 10 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:
6:18 am MST Feb 25, 2026
Forecast Valid:
6am MST Feb 25, 2026-6pm MST Mar 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation