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

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874.0ft.

Clear

54°F

12°C

Humidity 71%
Wind Speed W 9 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 06 Jul 05:30 AM MDT
Extended Forecast for

Montana City MT

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 77. West wind around 6 mph becoming north northeast in the afternoon.

    High: 77 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, then gradually becoming mostly clear, with a low around 53. North northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 50%.

    Low: 53 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 83. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 83 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 87 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 54. West southwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. West northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 77. West wind around 6 mph becoming north northeast in the afternoon.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, then gradually becoming mostly clear, with a low around 53. North northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 50%.
Tuesday
A 20 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 83. Calm wind becoming northwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 54. West southwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 84. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 53. West northwest wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montana City MT
 46.53°N 111.94°W (Elev. 4199 ft)
Last Update:
5:17 am MDT Jul 6, 2026
Forecast Valid:
5am MDT Jul 6, 2026-6pm MDT Jul 12, 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