Severe Thunderstorms and Heavy Rain Across the Ohio Valley;

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Current conditions at

Kilo - Harlowton (K1KM)

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

Clear

55°F

13°C

Humidity 69%
Wind Speed NNW 13 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 11 Aug 04:55 AM MDT
Extended Forecast for

Harlowton MT

  • Today

    Today: Patchy smoke. Sunny, with a high near 89. West northwest wind 10 to 15 mph.

    High: 89 °F

    Patchy Smoke

  • Tonight

    Tonight: Patchy smoke. Mostly clear, with a low around 53. North northwest wind 9 to 14 mph becoming light and variable.

    Low: 53 °F

    Patchy Smoke

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 5pm.  Patchy smoke. Mostly sunny, with a high near 81. Northwest wind 6 to 15 mph becoming north northeast in the afternoon.

    High: 81 °F

    Patchy Smoke
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm.  Patchy smoke before 9pm. Mostly cloudy, with a low around 52. Northeast wind 7 to 14 mph.  Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 71. East wind 7 to 11 mph.  Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm.  Low around 49. East wind 9 to 11 mph becoming west after midnight.  Chance of precipitation is 90%.

    Low: 49 °F

    Showers

  • Friday

    Friday: Showers likely, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 70. Northwest wind 8 to 10 mph.  Chance of precipitation is 70%.

    High: 70 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers.  Mostly cloudy, with a low around 47. North northeast wind 5 to 9 mph becoming light and variable  after midnight.  Chance of precipitation is 70%.

    Low: 47 °F

    Showers
    Likely

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 75. South southeast wind 5 to 7 mph.  Chance of precipitation is 40%.

    High: 75 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Patchy smoke. Sunny, with a high near 89. West northwest wind 10 to 15 mph.
Tonight
Patchy smoke. Mostly clear, with a low around 53. North northwest wind 9 to 14 mph becoming light and variable.
Wednesday
A 20 percent chance of showers and thunderstorms after 5pm. Patchy smoke. Mostly sunny, with a high near 81. Northwest wind 6 to 15 mph becoming north northeast in the afternoon.
Wednesday Night
Showers likely and possibly a thunderstorm. Patchy smoke before 9pm. Mostly cloudy, with a low around 52. Northeast wind 7 to 14 mph. Chance of precipitation is 70%.
Thursday
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 71. East wind 7 to 11 mph. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm. Low around 49. East wind 9 to 11 mph becoming west after midnight. Chance of precipitation is 90%.
Friday
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 70. Northwest wind 8 to 10 mph. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 47. North northeast wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 70%.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 75. South southeast wind 5 to 7 mph. Chance of precipitation is 40%.
Saturday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 47. Southeast wind around 6 mph becoming light and variable in the evening.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81. West southwest wind 5 to 7 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50. West wind 3 to 7 mph.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83. West southwest wind 5 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Harlowton MT
 46.44°N 109.85°W (Elev. 4190 ft)
12:32 am MDT Aug 11, 2026
5am MDT Aug 11, 2026-6pm MDT Aug 17, 2026
 
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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