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

52°F

11°C

Humidity 22%
Wind Speed W 10 MPH
Barometer NA
Dewpoint 14°F (-10°C)
Visibility NA
Last update 17 Jan 01:39 PM MST
Extended Forecast for

Sumatra MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 41. West wind 13 to 15 mph.

    High: 41 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 26. West northwest wind 20 to 29 mph, with gusts as high as 39 mph.

    Low: 26 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A 20 percent chance of snow showers before 2pm. Mostly cloudy, with a temperature rising to near 33 by noon, then falling to around 23 during the remainder of the day. Northwest wind 24 to 30 mph, with gusts as high as 41 mph.

    High: 33 °F⇓

    Slight Chance
    Snow Showers

  • Sunday Night

    Sunday Night: Cloudy, then gradually becoming partly cloudy, with a low around 12. North wind 6 to 14 mph.

    Low: 12 °F

    Decreasing
    Clouds

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 35. West northwest wind 7 to 9 mph.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 22. West wind 5 to 11 mph.

    Low: 22 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 37. Northwest wind 14 to 24 mph.

    High: 37 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 17. Northwest wind 13 to 18 mph.

    Low: 17 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 29. Northwest wind 13 to 16 mph.

    High: 29 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 41. West wind 13 to 15 mph.
Tonight
Increasing clouds, with a low around 26. West northwest wind 20 to 29 mph, with gusts as high as 39 mph.
Sunday
A 20 percent chance of snow showers before 2pm. Mostly cloudy, with a temperature rising to near 33 by noon, then falling to around 23 during the remainder of the day. Northwest wind 24 to 30 mph, with gusts as high as 41 mph.
Sunday Night
Cloudy, then gradually becoming partly cloudy, with a low around 12. North wind 6 to 14 mph.
M.L.King Day
Mostly sunny, with a high near 35. West northwest wind 7 to 9 mph.
Monday Night
Mostly cloudy, with a low around 22. West wind 5 to 11 mph.
Tuesday
Mostly cloudy, with a high near 37. Northwest wind 14 to 24 mph.
Tuesday Night
Mostly cloudy, with a low around 17. Northwest wind 13 to 18 mph.
Wednesday
Partly sunny, with a high near 29. Northwest wind 13 to 16 mph.
Wednesday Night
Partly cloudy, with a low around 15. West southwest wind 7 to 10 mph.
Thursday
Partly sunny, with a high near 33. North northwest wind 8 to 13 mph.
Thursday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 4. North northeast wind 8 to 11 mph.
Friday
Snow showers likely. Mostly cloudy and cold, with a high near 14. East northeast wind around 10 mph. Chance of precipitation is 60%.
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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:
2:00 pm MST Jan 17, 2026
Forecast Valid:
2pm MST Jan 17, 2026-6pm MST Jan 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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