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

30°F

-1°C

Humidity 69%
Wind Speed NNW 10 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 19 Apr 03:55 AM MDT
Extended Forecast for

Harlowton MT

  • Today

    Today: Sunny, with a high near 68. West wind 6 to 15 mph.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 40. West wind 7 to 14 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 76. West wind 10 to 15 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45. West wind 6 to 14 mph becoming south in the evening.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. West wind 7 to 14 mph becoming south in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 51. South wind 7 to 14 mph.

    Low: 51 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73. West southwest wind 8 to 13 mph increasing to 18 to 23 mph in the afternoon. Chance of precipitation is 70%.

    High: 73 °F

    Partly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Rain showers before 3am, then rain and snow showers. Some thunder is also possible. Low around 34. West northwest wind 29 to 36 mph, with gusts as high as 41 mph. Chance of precipitation is 90%.

    Low: 34 °F

    Showers then
    Rain/Snow

  • Thursday

    Thursday: Rain and snow showers likely, becoming all snow after 9am. Mostly cloudy, with a high near 43. Northwest wind 34 to 40 mph, with gusts as high as 47 mph. Chance of precipitation is 70%.

    High: 43 °F

    Rain/Snow
    Likely then
    Chance Snow
    Showers

Detailed Forecast

Today
Sunny, with a high near 68. West wind 6 to 15 mph.
Tonight
Increasing clouds, with a low around 40. West wind 7 to 14 mph.
Monday
Mostly sunny, with a high near 76. West wind 10 to 15 mph.
Monday Night
Partly cloudy, with a low around 45. West wind 6 to 14 mph becoming south in the evening.
Tuesday
Mostly sunny, with a high near 82. West wind 7 to 14 mph becoming south in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 51. South wind 7 to 14 mph.
Wednesday
Showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73. West southwest wind 8 to 13 mph increasing to 18 to 23 mph in the afternoon. Chance of precipitation is 70%.
Wednesday Night
Rain showers before 3am, then rain and snow showers. Some thunder is also possible. Low around 34. West northwest wind 29 to 36 mph, with gusts as high as 41 mph. Chance of precipitation is 90%.
Thursday
Rain and snow showers likely, becoming all snow after 9am. Mostly cloudy, with a high near 43. Northwest wind 34 to 40 mph, with gusts as high as 47 mph. Chance of precipitation is 70%.
Thursday Night
A 30 percent chance of snow showers. Mostly cloudy, with a low around 25. Northwest wind 26 to 31 mph decreasing to 17 to 22 mph after midnight.
Friday
A 40 percent chance of snow showers. Partly sunny, with a high near 44. North northwest wind 16 to 24 mph.
Friday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 24. Northwest wind 18 to 23 mph decreasing to 9 to 14 mph after midnight.
Saturday
A 20 percent chance of snow showers. Partly sunny, with a high near 44. Northwest wind 9 to 16 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:
12:38 am MDT Apr 19, 2026
Forecast Valid:
4am MDT Apr 19, 2026-6pm MDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation