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

51°F

11°C

Humidity 51%
Wind Speed N 13 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 21 Mar 04:55 AM MDT
Extended Forecast for

5 Miles SSW Harlowton MT

  • Today

    Today: Showers likely, mainly after 3pm. Mostly cloudy, with a high near 63. Northwest wind 11 to 16 mph increasing to 20 to 25 mph in the afternoon. Chance of precipitation is 60%.

    High: 63 °F

    Mostly Cloudy
    then Showers
    Likely

  • Tonight

    Tonight: A chance of rain showers, possibly mixing with snow after 9pm, then gradually ending. Partly cloudy, with a low around 33. West northwest wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 55. West wind 13 to 23 mph.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. Southwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight.

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 61. Southwest wind 6 to 14 mph.

    High: 61 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. West northwest wind 6 to 14 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain and snow showers after noon. Mostly cloudy, with a high near 60. West wind 8 to 17 mph becoming south in the afternoon. Chance of precipitation is 20%.

    High: 60 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 45. West wind 13 to 17 mph.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after noon. Partly sunny, with a high near 63. West southwest wind 16 to 21 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 44 mph.

    High: 63 °F

    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Showers likely, mainly after 3pm. Mostly cloudy, with a high near 63. Northwest wind 11 to 16 mph increasing to 20 to 25 mph in the afternoon. Chance of precipitation is 60%.
Tonight
A chance of rain showers, possibly mixing with snow after 9pm, then gradually ending. Partly cloudy, with a low around 33. West northwest wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
Sunny, with a high near 55. West wind 13 to 23 mph.
Sunday Night
Partly cloudy, with a low around 33. Southwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight.
Monday
Partly sunny, with a high near 61. Southwest wind 6 to 14 mph.
Monday Night
Mostly cloudy, with a low around 40. West northwest wind 6 to 14 mph.
Tuesday
A slight chance of rain and snow showers after noon. Mostly cloudy, with a high near 60. West wind 8 to 17 mph becoming south in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 45. West wind 13 to 17 mph.
Wednesday
A 20 percent chance of showers after noon. Partly sunny, with a high near 63. West southwest wind 16 to 21 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 44 mph.
Wednesday Night
A slight chance of rain showers before 9pm, then a slight chance of rain and snow showers between 9pm and 3am, then a slight chance of snow showers after 3am. Mostly cloudy, with a low around 33. West northwest wind 22 to 31 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 49. West wind 22 to 28 mph.
Thursday Night
Partly cloudy, with a low around 26. West northwest wind 19 to 24 mph becoming west southwest 10 to 15 mph after midnight.
Friday
Mostly sunny, with a high near 54. West southwest wind 9 to 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Harlowton MT
 46.38°N 109.88°W (Elev. 4488 ft)
Last Update:
5:10 am MDT Mar 21, 2026
Forecast Valid:
5am MDT Mar 21, 2026-6pm MDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation