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

9°F

-13°C

Humidity 84%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint 5°F (-15°C)
Visibility NA
Last update 19 Jan 06:39 AM MST
Extended Forecast for

Sumatra MT

  • M.L.King Day

    M.L.King Day: Increasing clouds, with a high near 36. West wind 6 to 8 mph.

    High: 36 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. West southwest wind 5 to 9 mph becoming south in the evening.

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of snow showers before 11am. Mostly cloudy, with a high near 33. Northwest wind 17 to 22 mph increasing to 23 to 28 mph in the morning. Winds could gust as high as 38 mph. New snow accumulation of less than a half inch possible.

    High: 33 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a steady temperature around 26. West northwest wind 10 to 17 mph.

    Low: 26 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a steady temperature around 23. Northwest wind 18 to 23 mph.

    High: 23 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 12. Northwest wind 6 to 11 mph.

    Low: 12 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 22. North wind 6 to 10 mph.

    High: 22 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 0. East northeast wind 6 to 10 mph.

    Low: 0 °F

    Slight Chance
    Snow Showers

  • Friday

    Friday: Mostly sunny, with a high near 17. East wind 6 to 8 mph.

    High: 17 °F

    Mostly Sunny

Detailed Forecast

M.L.King Day
Increasing clouds, with a high near 36. West wind 6 to 8 mph.
Tonight
Mostly cloudy, with a low around 23. West southwest wind 5 to 9 mph becoming south in the evening.
Tuesday
A 40 percent chance of snow showers before 11am. Mostly cloudy, with a high near 33. Northwest wind 17 to 22 mph increasing to 23 to 28 mph in the morning. Winds could gust as high as 38 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
Partly cloudy, with a steady temperature around 26. West northwest wind 10 to 17 mph.
Wednesday
Mostly sunny, with a steady temperature around 23. Northwest wind 18 to 23 mph.
Wednesday Night
Mostly cloudy, with a low around 12. Northwest wind 6 to 11 mph.
Thursday
Mostly cloudy, with a high near 22. North wind 6 to 10 mph.
Thursday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 0. East northeast wind 6 to 10 mph.
Friday
Mostly sunny, with a high near 17. East wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 5. Southeast wind around 7 mph.
Saturday
Mostly sunny, with a high near 28. West southwest wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 13. West southwest wind around 8 mph.
Sunday
Partly sunny, with a high near 38. West wind 8 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sumatra MT
 46.62°N 107.57°W (Elev. 3196 ft)
Last Update:
6:13 am MST Jan 19, 2026
Forecast Valid:
7am MST Jan 19, 2026-6pm MST Jan 25, 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