Autumn Temperatures for Eastern Third of the Country; Developing Offshore Coastal Storm

Cooler and less humid conditions for most of the eastern third of the nation as high pressure dominates the weather pattern. Otherwise, rather tranquil weather for most of the nation for the end of the weekend into the start of this week. We continue to monitor a developing coastal storm offshore of the Carolinas; Coastal flooding and beach erosion possible along portions of the Mid-Atlantic. Read More >

Current conditions at

HORSE THIEF (HORM8)

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

NA

53°F

12°C

Humidity 53%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 18 Oct 10:39 AM MDT
Extended Forecast for

21 Miles NW Roundup MT

  • Today

    Today: Mostly sunny, with a high near 59. East wind around 9 mph.

    High: 59 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 33. East wind 5 to 7 mph becoming light and variable.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 68. South southwest wind 5 to 13 mph.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. West southwest wind 3 to 6 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67. Light and variable wind becoming north northeast 5 to 9 mph in the morning.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35. North northeast wind 5 to 8 mph becoming calm  after midnight.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 65. Light southwest wind becoming south 6 to 11 mph in the morning.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 40. West southwest wind 3 to 6 mph.

    Low: 40 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72. Southwest wind 5 to 10 mph.

    High: 72 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 59. East wind around 9 mph.
Tonight
Mostly clear, with a low around 33. East wind 5 to 7 mph becoming light and variable.
Monday
Sunny, with a high near 68. South southwest wind 5 to 13 mph.
Monday Night
Mostly clear, with a low around 39. West southwest wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 67. Light and variable wind becoming north northeast 5 to 9 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 35. North northeast wind 5 to 8 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 65. Light southwest wind becoming south 6 to 11 mph in the morning.
Wednesday Night
Mostly clear, with a low around 40. West southwest wind 3 to 6 mph.
Thursday
Sunny, with a high near 72. Southwest wind 5 to 10 mph.
Thursday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 43. Calm wind becoming west northwest around 5 mph after midnight.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 61. Northwest wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon.
Friday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 32. Northwest wind 22 to 24 mph. Chance of precipitation is 50%.
Saturday
Mostly sunny, with a high near 50. West southwest wind 10 to 15 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles NW Roundup MT
 46.69°N 108.81°W (Elev. 3914 ft)
8:17 am MDT Oct 18, 2026
11am MDT Oct 18, 2026-6pm MDT Oct 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database