National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms for Mid-Atlantic and Northeast; Typhoon Approaching Guam

A cold front will sweep eastward today accompanied by strong to severe thunderstorms for the mid-Atlantic and Northeast today. In the wake of this cold front, autumn like temperatures and gusty winds from the Plains, Mississippi Valley, Great Lakes to most of the eastern seaboard. Fire weather conditions for lower Mississippi Valley into portions of California. For Guam, a typhoon is approaching. Read More >

Current conditions at

HORSE THIEF (HORM8)

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

NA

27°F

-3°C

Humidity 90%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 16 Oct 04:39 AM MDT
Extended Forecast for

Roundup MT

  • Today

    Today: Sunny, with a high near 63. Southwest wind 10 to 17 mph.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 41. West southwest wind 11 to 14 mph.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 72. Southwest wind 7 to 17 mph.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41. West wind around 6 mph becoming light and variable after midnight.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 61. Calm wind becoming east around 6 mph in the afternoon.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. Light and variable wind.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67. Calm wind becoming south southwest around 6 mph in the morning.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. South southeast wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68. Southwest wind 5 to 7 mph.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 63. Southwest wind 10 to 17 mph.
Tonight
Mostly clear, with a low around 41. West southwest wind 11 to 14 mph.
Saturday
Sunny, with a high near 72. Southwest wind 7 to 17 mph.
Saturday Night
Partly cloudy, with a low around 41. West wind around 6 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 61. Calm wind becoming east around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 36. Light and variable wind.
Monday
Sunny, with a high near 67. Calm wind becoming south southwest around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 40. South southeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 68. Southwest wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 41. East northeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 61. Calm wind becoming east around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 40. East wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 64. Southwest wind 6 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Roundup MT
 46.45°N 108.53°W (Elev. 3219 ft)
Last Update:
3:37 am MDT Oct 16, 2026
Forecast Valid:
5am MDT Oct 16, 2026-6pm MDT Oct 22, 2026
 
Forecast Discussion
 
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