Current conditions at

HORSE THIEF (HORM8)

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

NA

40°F

4°C

Humidity 44%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Last update 18 Jan 01:39 AM MST
Extended Forecast for

Sumatra MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 25. West northwest wind around 24 mph.

    Low: 25 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 10 percent chance of snow before 7am.  Mostly cloudy, with a temperature rising to near 34 by 11am, then falling to around 23 during the remainder of the day. Northwest wind 15 to 25 mph.

    High: 34 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Cloudy during the early evening, then gradual clearing, with a low around 12. North wind 6 to 10 mph becoming west after midnight.

    Low: 12 °F

    Gradual
    Clearing

  • M.L.King Day

    M.L.King Day: Partly sunny, with a high near 36. West wind 6 to 10 mph.

    High: 36 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 22. Northwest wind 6 to 10 mph becoming southwest in the evening.

    Low: 22 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 36. Northwest wind 14 to 23 mph.

    High: 36 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 19. West northwest wind 11 to 15 mph.

    Low: 19 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. Northwest wind around 14 mph.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 16. North northwest wind around 6 mph becoming south in the evening.

    Low: 16 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 25. West northwest wind around 24 mph.
Sunday
A 10 percent chance of snow before 7am. Mostly cloudy, with a temperature rising to near 34 by 11am, then falling to around 23 during the remainder of the day. Northwest wind 15 to 25 mph.
Sunday Night
Cloudy during the early evening, then gradual clearing, with a low around 12. North wind 6 to 10 mph becoming west after midnight.
M.L.King Day
Partly sunny, with a high near 36. West wind 6 to 10 mph.
Monday Night
Mostly cloudy, with a low around 22. Northwest wind 6 to 10 mph becoming southwest in the evening.
Tuesday
Mostly cloudy, with a high near 36. Northwest wind 14 to 23 mph.
Tuesday Night
Mostly cloudy, with a low around 19. West northwest wind 11 to 15 mph.
Wednesday
Partly sunny, with a high near 32. Northwest wind around 14 mph.
Wednesday Night
Mostly cloudy, with a low around 16. North northwest wind around 6 mph becoming south in the evening.
Thursday
Mostly cloudy, with a high near 37. West southwest wind 6 to 10 mph becoming north northwest in the afternoon.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 6. North northeast wind around 9 mph.
Friday
Snow likely. Mostly cloudy, with a high near 17. Northeast wind 8 to 10 mph. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around -6. Northeast wind around 10 mph.
Saturday
A 40 percent chance of snow. Mostly cloudy and cold, with a high near 5. East northeast wind around 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Sumatra MT
 46.62°N 107.57°W (Elev. 3196 ft)
1:09 am MST Jan 18, 2026
2am MST Jan 18, 2026-6pm MST Jan 24, 2026
 
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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