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

66°F

19°C

Humidity 41%
Wind Speed WSW 3 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 03 Oct 12:39 PM MDT
Extended Forecast for

Sumatra MT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 76. Northwest wind around 10 mph.

    High: 76 °F

    Partly Sunny

  • Tonight

    Tonight: Scattered showers, mainly after 3am. Mostly cloudy, with a low around 48. North northwest wind around 10 mph. Chance of precipitation is 50%.

    Low: 48 °F

    Scattered
    Showers

  • Saturday

    Saturday: Rain. High near 57. North wind around 10 mph. Chance of precipitation is 90%.

    High: 57 °F

    Rain

  • Saturday Night

    Saturday Night: Rain, mainly before midnight. Low around 41. North northwest wind 10 to 14 mph. Chance of precipitation is 80%.

    Low: 41 °F

    Rain then
    Chance Rain

  • Sunday

    Sunday: A 50 percent chance of showers. Mostly cloudy, with a high near 51. North northwest wind 13 to 15 mph.

    High: 51 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30. North northwest wind 5 to 9 mph becoming west southwest after midnight.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 58. South southwest wind 6 to 9 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 33. Southwest wind 3 to 5 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 64. South wind 5 to 9 mph.

    High: 64 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 76. Northwest wind around 10 mph.
Tonight
Scattered showers, mainly after 3am. Mostly cloudy, with a low around 48. North northwest wind around 10 mph. Chance of precipitation is 50%.
Saturday
Rain. High near 57. North wind around 10 mph. Chance of precipitation is 90%.
Saturday Night
Rain, mainly before midnight. Low around 41. North northwest wind 10 to 14 mph. Chance of precipitation is 80%.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 51. North northwest wind 13 to 15 mph.
Sunday Night
Partly cloudy, with a low around 30. North northwest wind 5 to 9 mph becoming west southwest after midnight.
Monday
Sunny, with a high near 58. South southwest wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 33. Southwest wind 3 to 5 mph.
Tuesday
Sunny, with a high near 64. South wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 38. Southeast wind around 6 mph.
Wednesday
Sunny, with a high near 70. South southwest wind 7 to 10 mph.
Wednesday Night
Mostly clear, with a low around 42. South southwest wind around 6 mph.
Thursday
Sunny, with a high near 68. West northwest wind around 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sumatra MT
 46.62°N 107.57°W (Elev. 3196 ft)
Last Update:
1:33 pm MDT Oct 3, 2025
Forecast Valid:
1pm MDT Oct 3, 2025-6pm MDT Oct 9, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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