National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tropical Storm Edouard Along the Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard off the central Gulf Coast will bring tropical storm conditions and heavy rainfall to portions of Upper Texas and southwestern Louisiana coasts Tuesday into Wednesday. Storm Surge Watches and Tropical Storm Warnings are in effect. Hot and humid conditions will continue to expand from the Central Plains into the Ohio Valley and Mid-Atlantic this week. Read More >

Current conditions at

Kilo - Harlowton (K1KM)

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

Clear

54°F

12°C

Humidity 51%
Wind Speed NE 4 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 01 Sep 12:55 AM MDT
Extended Forecast for

Harlowton MT

  • Overnight

    Overnight: Partly cloudy, with a low around 45. East wind around 6 mph becoming light and variable.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers after 2pm. Partly sunny, with a high near 82. Light and variable wind becoming south 8 to 13 mph in the afternoon.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. South wind 5 to 14 mph becoming north northwest in the evening.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 81. South southwest wind 5 to 10 mph becoming south southwest 18 to 23 mph in the afternoon. Chance of precipitation is 20%.

    High: 81 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 46. West southwest wind 18 to 23 mph decreasing to 8 to 13 mph after midnight.

    Low: 46 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 77. Southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46. Southwest wind 15 to 20 mph becoming west northwest 7 to 12 mph in the evening.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 79. Northwest wind 5 to 13 mph becoming southeast in the afternoon.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. South southeast wind 9 to 15 mph becoming north northwest after midnight.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 45. East wind around 6 mph becoming light and variable.
Tuesday
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 82. Light and variable wind becoming south 8 to 13 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 50. South wind 5 to 14 mph becoming north northwest in the evening.
Wednesday
A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 81. South southwest wind 5 to 10 mph becoming south southwest 18 to 23 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 46. West southwest wind 18 to 23 mph decreasing to 8 to 13 mph after midnight.
Thursday
Mostly sunny, with a high near 77. Southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 46. Southwest wind 15 to 20 mph becoming west northwest 7 to 12 mph in the evening.
Friday
Sunny, with a high near 79. Northwest wind 5 to 13 mph becoming southeast in the afternoon.
Friday Night
Partly cloudy, with a low around 46. South southeast wind 9 to 15 mph becoming north northwest after midnight.
Saturday
Sunny, with a high near 77. North northwest wind 6 to 14 mph becoming east southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 48. East wind 12 to 17 mph becoming southwest 6 to 11 mph after midnight.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 74. West wind 6 to 11 mph becoming south in the afternoon.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 49. East southeast wind 6 to 14 mph becoming west in the evening.
Labor Day
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 75. West wind 8 to 15 mph.
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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:
12:32 am MDT Sep 1, 2026
Forecast Valid:
1am MDT Sep 1, 2026-6pm MDT Sep 7, 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