National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

HORSE THIEF (HORM8)

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

NA

78°F

26°C

Humidity 19%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Heat Index77°F (25°C)
Last update 03 Sep 07:39 PM MDT
Extended Forecast for

Roundup MT

Red Flag Warning September 3, 07:58pm until September 3, 09:00pm
Click here for hazard details and duration
...
  •  
    Red Flag Warning September 3, 07:58pm until September 3, 09:00pm

    NOW until 9:00pm Thu

    Red Flag Warning

  • Tonight

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Sunny and hot, with a high near 90. Light and variable wind becoming southwest 6 to 11 mph in the morning.

    High: 90 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55. West northwest wind 6 to 9 mph becoming north in the evening.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 83. Light and variable wind becoming northeast 5 to 10 mph in the afternoon.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 56. North wind 7 to 11 mph.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers. Partly sunny, with a high near 79. North wind around 9 mph.

    High: 79 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. East northeast wind 7 to 10 mph becoming north northwest after midnight. Chance of precipitation is 70%.

    Low: 57 °F

    Showers
    Likely

  • Labor Day

    Labor Day: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 78. West wind 6 to 16 mph. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 52. Light and variable wind.
Friday
Sunny and hot, with a high near 90. Light and variable wind becoming southwest 6 to 11 mph in the morning.
Friday Night
Partly cloudy, with a low around 55. West northwest wind 6 to 9 mph becoming north in the evening.
Saturday
Sunny, with a high near 83. Light and variable wind becoming northeast 5 to 10 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 56. North wind 7 to 11 mph.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 79. North wind around 9 mph.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. East northeast wind 7 to 10 mph becoming north northwest after midnight. Chance of precipitation is 70%.
Labor Day
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 78. West wind 6 to 16 mph. Chance of precipitation is 60%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 49. West wind 13 to 22 mph.
Tuesday
Sunny, with a high near 74. West southwest wind 11 to 18 mph.
Tuesday Night
Mostly clear, with a low around 47. West northwest wind 8 to 13 mph becoming light and variable after midnight.
Wednesday
Mostly sunny, with a high near 75. Northwest wind 5 to 7 mph becoming south in the afternoon.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 48. East northeast wind 5 to 8 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 77. West wind 5 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Roundup MT
 46.43°N 108.53°W (Elev. 3399 ft)
Last Update:
2:13 pm MDT Sep 3, 2026
Forecast Valid:
7pm MDT Sep 3, 2026-6pm MDT Sep 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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