Current conditions at

HORSE THIEF (HORM8)

Lat: 46.42581°NLon: 108.6745°WElev: 3414.0ft.

NA

61°F

16°C

Humidity 76%
Wind Speed NE 1 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 06 Sep 03:39 AM MDT
Extended Forecast for

Roundup MT

  • Today

    Today: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 83. North wind 6 to 11 mph.

    High: 83 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 3am, then a chance of showers and thunderstorms, mainly between 3am and 5am.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 56. Northeast wind 8 to 13 mph becoming west southwest after midnight.  Chance of precipitation is 60%.

    Low: 56 °F

    Mostly Cloudy
    then Showers
    Likely and
    Patchy Fog

  • Labor Day

    Labor Day: A slight chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm.  Patchy fog before 9am.  Otherwise, mostly cloudy through mid morning, then becoming sunny, with a high near 78. West wind 6 to 11 mph increasing to 19 to 24 mph in the afternoon.  Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers and
    Patchy Fog

  • Monday Night

    Monday Night: Mostly clear, with a low around 49. West wind 17 to 24 mph.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72. West wind 17 to 21 mph.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43. Northwest wind 12 to 17 mph becoming light and variable  after midnight.

    Low: 43 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. Southwest wind 5 to 11 mph.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. West northwest wind 5 to 9 mph becoming calm.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85. West southwest wind 8 to 14 mph.

    High: 85 °F

    Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 83. North wind 6 to 11 mph.
Tonight
Showers likely and possibly a thunderstorm before 3am, then a chance of showers and thunderstorms, mainly between 3am and 5am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 56. Northeast wind 8 to 13 mph becoming west southwest after midnight. Chance of precipitation is 60%.
Labor Day
A slight chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Patchy fog before 9am. Otherwise, mostly cloudy through mid morning, then becoming sunny, with a high near 78. West wind 6 to 11 mph increasing to 19 to 24 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 49. West wind 17 to 24 mph.
Tuesday
Sunny, with a high near 72. West wind 17 to 21 mph.
Tuesday Night
Mostly clear, with a low around 43. Northwest wind 12 to 17 mph becoming light and variable after midnight.
Wednesday
Sunny, with a high near 81. Southwest wind 5 to 11 mph.
Wednesday Night
Mostly clear, with a low around 47. West northwest wind 5 to 9 mph becoming calm.
Thursday
Sunny, with a high near 85. West southwest wind 8 to 14 mph.
Thursday Night
Mostly clear, with a low around 50. Northwest wind 6 to 11 mph becoming light.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 76. West northwest wind 6 to 11 mph becoming north in the afternoon.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 45. North wind 7 to 13 mph.
Saturday
A 30 percent chance of showers. Mostly cloudy, with a high near 66. North wind 8 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Roundup MT
 46.45°N 108.53°W (Elev. 3219 ft)
12:47 am MDT Sep 6, 2026
4am MDT Sep 6, 2026-6pm MDT Sep 12, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database