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.

NA

47°F

8°C

Humidity 73%
Wind Speed SSW 4 MPH
Barometer 29.61 in (1002.71 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 01 Apr 05:55 PM MDT
Extended Forecast for

Harlowton MT

  • Tonight

    Tonight: A chance of showers before midnight, then a slight chance of showers after 5am. Mostly cloudy, with a low around 31. East southeast wind 9 to 14 mph becoming light after midnight. Chance of precipitation is 40%.

    Low: 31 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of rain showers before noon, then rain and snow showers. Some thunder is also possible. High near 49. Light and variable wind becoming west northwest 16 to 21 mph in the morning. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 49 °F

    Chance
    Showers then
    Rain/Snow

  • Thursday Night

    Thursday Night: Rain and snow showers, becoming all snow after 9pm. Low around 30. West northwest wind 20 to 22 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 30 °F

    Rain/Snow
    then Snow
    Showers

  • Friday

    Friday: Snow showers likely before noon, then a chance of rain and snow showers. Mostly cloudy, with a high near 46. Northwest wind around 18 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 46 °F

    Snow Showers
    Likely then
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27. West wind 8 to 16 mph.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 57. West wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. West wind 12 to 17 mph decreasing to 6 to 11 mph after midnight.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58. West wind 8 to 16 mph becoming south southwest in the afternoon.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 32. East northeast wind 6 to 15 mph.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers before midnight, then a slight chance of showers after 5am. Mostly cloudy, with a low around 31. East southeast wind 9 to 14 mph becoming light after midnight. Chance of precipitation is 40%.
Thursday
A chance of rain showers before noon, then rain and snow showers. Some thunder is also possible. High near 49. Light and variable wind becoming west northwest 16 to 21 mph in the morning. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
Rain and snow showers, becoming all snow after 9pm. Low around 30. West northwest wind 20 to 22 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Friday
Snow showers likely before noon, then a chance of rain and snow showers. Mostly cloudy, with a high near 46. Northwest wind around 18 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
Partly cloudy, with a low around 27. West wind 8 to 16 mph.
Saturday
Sunny, with a high near 57. West wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 30. West wind 12 to 17 mph decreasing to 6 to 11 mph after midnight.
Sunday
Sunny, with a high near 58. West wind 8 to 16 mph becoming south southwest in the afternoon.
Sunday Night
Mostly cloudy, with a low around 32. East northeast wind 6 to 15 mph.
Monday
Mostly cloudy, with a high near 53. Southeast wind 6 to 15 mph.
Monday Night
Mostly cloudy, with a low around 33. East southeast wind 6 to 15 mph becoming southwest after midnight.
Tuesday
Mostly sunny, with a high near 66. West southwest wind 9 to 14 mph increasing to 19 to 24 mph in the afternoon.
Tuesday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 34. West wind 15 to 22 mph becoming north northwest after midnight. Chance of precipitation is 20%.
Wednesday
A chance of rain and snow showers. Mostly cloudy, with a high near 55. North northwest wind 15 to 22 mph. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harlowton MT
 46.44°N 109.82°W (Elev. 4199 ft)
Last Update:
1:49 pm MDT Apr 1, 2026
Forecast Valid:
6pm MDT Apr 1, 2026-6pm MDT Apr 8, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation