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

Kilo - Harlowton (K1KM)

Lat: 46.5°NLon: 109.8°WElev: 4452.0ft.

Clear

43°F

6°C

Humidity 71%
Wind Speed N 13 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 13 Oct 05:55 PM MDT
Extended Forecast for

Harlowton MT

  • Tonight

    Tonight: Mostly clear, with a low around 24. North wind 5 to 8 mph becoming west after midnight.

    Low: 24 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 55. West wind 9 to 17 mph.

    High: 55 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. West northwest wind 11 to 14 mph.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 57. West northwest wind 6 to 10 mph becoming east northeast in the afternoon.

    High: 57 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30. East southeast wind around 5 mph becoming west southwest after midnight.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 68. West southwest wind around 8 mph.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. West wind 5 to 15 mph.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 71. West wind 15 to 18 mph.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37. West wind 9 to 16 mph.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 24. North wind 5 to 8 mph becoming west after midnight.
Wednesday
Sunny, with a high near 55. West wind 9 to 17 mph.
Wednesday Night
Mostly cloudy, with a low around 31. West northwest wind 11 to 14 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 57. West northwest wind 6 to 10 mph becoming east northeast in the afternoon.
Thursday Night
Mostly clear, with a low around 30. East southeast wind around 5 mph becoming west southwest after midnight.
Friday
Sunny, with a high near 68. West southwest wind around 8 mph.
Friday Night
Mostly clear, with a low around 39. West wind 5 to 15 mph.
Saturday
Sunny, with a high near 71. West wind 15 to 18 mph.
Saturday Night
Partly cloudy, with a low around 37. West wind 9 to 16 mph.
Sunday
Sunny, with a high near 62. West northwest wind 5 to 11 mph becoming southwest in the afternoon.
Sunday Night
Mostly clear, with a low around 35. East southeast wind 5 to 7 mph becoming light and variable after midnight.
Monday
Mostly sunny, with a high near 68. West wind around 6 mph becoming light and variable.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 38. South southeast wind 5 to 8 mph becoming northwest after midnight.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 58. West northwest wind around 11 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harlowton MT
 46.44°N 109.85°W (Elev. 4190 ft)
Last Update:
5:13 pm MDT Oct 13, 2026
Forecast Valid:
6pm MDT Oct 13, 2026-6pm MDT Oct 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation