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

Frigid Airmass to Bring Significantly Colder Temperatures; Snow Continues Downwind of the Great Lakes

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >

Current conditions at

Big Timber Airport (K6S0)

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

Clear

54°F

12°C

Humidity 23%
Wind Speed W 36 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 10 Nov 03:15 AM MST
Extended Forecast for

9 Miles W Harlowton MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 36. West wind around 24 mph.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 64. West wind 21 to 24 mph.

    High: 64 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 40. West wind 20 to 29 mph, with gusts as high as 40 mph.

    Low: 40 °F

    Decreasing
    Clouds

  • Veterans Day

    Veterans Day: Sunny, with a high near 59. West wind 26 to 30 mph, with gusts as high as 43 mph.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 31. West wind 7 to 16 mph.

    Low: 31 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 59. West southwest wind around 7 mph.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34. West southwest wind 5 to 10 mph.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 62. West wind 7 to 11 mph becoming south in the afternoon.

    High: 62 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 33. South wind 10 to 15 mph becoming west in the evening.

    Low: 33 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 36. West wind around 24 mph.
Monday
Mostly cloudy, with a high near 64. West wind 21 to 24 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 40. West wind 20 to 29 mph, with gusts as high as 40 mph.
Veterans Day
Sunny, with a high near 59. West wind 26 to 30 mph, with gusts as high as 43 mph.
Tuesday Night
Partly cloudy, with a low around 31. West wind 7 to 16 mph.
Wednesday
Partly sunny, with a high near 59. West southwest wind around 7 mph.
Wednesday Night
Mostly cloudy, with a low around 34. West southwest wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 62. West wind 7 to 11 mph becoming south in the afternoon.
Thursday Night
A 30 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 33. South wind 10 to 15 mph becoming west in the evening.
Friday
A chance of rain and snow showers, mainly before 11am. Partly sunny, with a high near 46. West wind 15 to 20 mph. Chance of precipitation is 30%.
Friday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 24. West wind 15 to 17 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 43. West wind 17 to 22 mph.
Saturday Night
Partly cloudy, with a low around 25. West wind around 14 mph.
Sunday
Mostly sunny, with a high near 49. West wind around 15 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles W Harlowton MT
 46.45°N 110.04°W (Elev. 4498 ft)
Last Update:
2:48 am MST Nov 10, 2025
Forecast Valid:
3am MST Nov 10, 2025-6pm MST Nov 16, 2025
 
Forecast Discussion
 
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Additional Resources

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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