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.

Overcast

45°F

7°C

Humidity 61%
Wind Speed NNW 17 MPH
Barometer 29.73 in (1006.77 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 13 Apr 09:55 AM MDT
Extended Forecast for

Harlowton MT

  • Today

    Today: A 30 percent chance of showers, mainly before 3pm. Mostly cloudy, with a high near 56. West wind 22 to 30 mph, with gusts as high as 41 mph.

    High: 56 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 36. West wind 15 to 21 mph.

    Low: 36 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 61. West wind 16 to 24 mph.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. West southwest wind 17 to 22 mph decreasing to 8 to 13 mph after midnight.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers after noon. Mostly cloudy, with a high near 60. Southwest wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon.

    High: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Rain showers likely before midnight, then rain and snow showers. Low around 32. West southwest wind 11 to 20 mph becoming north northwest after midnight. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Showers
    Likely then
    Rain/Snow

  • Thursday

    Thursday: Rain and snow showers, becoming all snow after 9am. High near 40. Northwest wind 18 to 26 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    High: 40 °F

    Rain/Snow
    then Snow
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 21. North northwest wind 21 to 28 mph.

    Low: 21 °F

    Chance Snow
    Showers

  • Friday

    Friday: A 40 percent chance of snow showers. Partly sunny, with a high near 44. West northwest wind 20 to 25 mph increasing to 26 to 31 mph in the afternoon.

    High: 44 °F

    Chance Snow
    Showers

Detailed Forecast

Today
A 30 percent chance of showers, mainly before 3pm. Mostly cloudy, with a high near 56. West wind 22 to 30 mph, with gusts as high as 41 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 36. West wind 15 to 21 mph.
Tuesday
Sunny, with a high near 61. West wind 16 to 24 mph.
Tuesday Night
Mostly cloudy, with a low around 37. West southwest wind 17 to 22 mph decreasing to 8 to 13 mph after midnight.
Wednesday
A 40 percent chance of showers after noon. Mostly cloudy, with a high near 60. Southwest wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon.
Wednesday Night
Rain showers likely before midnight, then rain and snow showers. Low around 32. West southwest wind 11 to 20 mph becoming north northwest after midnight. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
Rain and snow showers, becoming all snow after 9am. High near 40. Northwest wind 18 to 26 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Thursday Night
A 40 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 21. North northwest wind 21 to 28 mph.
Friday
A 40 percent chance of snow showers. Partly sunny, with a high near 44. West northwest wind 20 to 25 mph increasing to 26 to 31 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 24. West wind 20 to 25 mph decreasing to 10 to 15 mph after midnight.
Saturday
Mostly sunny, with a high near 54. West wind 11 to 20 mph.
Saturday Night
Partly cloudy, with a low around 30. West wind 7 to 17 mph.
Sunday
Mostly sunny, with a high near 63. West southwest wind 8 to 18 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:
10:33 am MDT Apr 13, 2026
Forecast Valid:
10am MDT Apr 13, 2026-6pm MDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation