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

Showers and Thunderstorms in the Southwest and Ohio Valley; Mountain Snow in the Northeast

Showers and thunderstorms, along with high-elevation snow, will begin to develop over parts of the Southwest late tonight and is expected to continue through Wednesday morning. Mountain snow over parts the Northeast will continue through Tuesday. A few strong to severe storms and heavy rainfall are possible across portions of the Lower Ohio Valley Tuesday. Read More >

Current conditions at

Big Timber Airport (K6S0)

Lat: 45.80647°NLon: 109.97826°WElev: 4494.0ft.

Overcast

48°F

9°C

Humidity 57%
Wind Speed W 13 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 18 Nov 01:15 AM MST
Extended Forecast for

Harlowton MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 34. West northwest wind around 9 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57. West wind 6 to 8 mph.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 30. West wind 5 to 10 mph.

    Low: 30 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 49. North wind 8 to 10 mph.

    High: 49 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 23. Northeast wind around 6 mph becoming west southwest after midnight.

    Low: 23 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 53. West southwest wind around 6 mph.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. West wind 6 to 13 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56. West wind 14 to 21 mph.

    High: 56 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33. West wind 15 to 18 mph.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 34. West northwest wind around 9 mph.
Tuesday
Mostly sunny, with a high near 57. West wind 6 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 30. West wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 49. North wind 8 to 10 mph.
Wednesday Night
Mostly clear, with a low around 23. Northeast wind around 6 mph becoming west southwest after midnight.
Thursday
Sunny, with a high near 53. West southwest wind around 6 mph.
Thursday Night
Mostly clear, with a low around 29. West wind 6 to 13 mph.
Friday
Sunny, with a high near 56. West wind 14 to 21 mph.
Friday Night
Partly cloudy, with a low around 33. West wind 15 to 18 mph.
Saturday
Mostly sunny, with a high near 54. West wind 18 to 20 mph.
Saturday Night
Mostly cloudy, with a low around 34. West wind around 15 mph.
Sunday
A slight chance of rain and snow showers. Mostly sunny, with a high near 55. West wind 15 to 17 mph. Chance of precipitation is 20%.
Sunday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 29. West wind around 10 mph. Chance of precipitation is 20%.
Monday
A chance of rain and snow showers. Mostly cloudy, with a high near 48. West wind around 10 mph. Chance of precipitation is 30%.
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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:
12:44 am MST Nov 18, 2025
Forecast Valid:
1am MST Nov 18, 2025-6pm MST Nov 24, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation