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.

light rain,mist

52°F

11°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.79 in (1008.81 mb)
Dewpoint 52°F (11°C)
Visibility 2.50 mi
Last update 29 Jun 03:00 PM MDT
Extended Forecast for

Montana City MT

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 56. West wind around 11 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Showers

  • Tonight

    Tonight: Showers, mainly before 9pm. Low around 46. West southwest wind 6 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    Low: 46 °F

    Showers then
    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 70. Light and variable wind becoming west 5 to 7 mph in the afternoon.

    High: 70 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 49. Light and variable wind. Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, then showers and possibly a thunderstorm after noon. High near 70. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 80%.

    High: 70 °F

    Chance
    Showers then
    Showers

  • 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 47. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

    Low: 47 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 74 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 49. West wind around 6 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny
    then Showers
    Likely

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 56. West wind around 11 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers, mainly before 9pm. Low around 46. West southwest wind 6 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 70. Light and variable wind becoming west 5 to 7 mph in the afternoon.
Tuesday Night
Showers and thunderstorms likely before 2am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 49. Light and variable wind. Chance of precipitation is 60%.
Wednesday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 70. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 80%.
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 47. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Thursday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74. Calm wind becoming west southwest around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 49. West wind around 6 mph becoming calm in the evening.
Friday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 73.
Friday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 48.
Independence Day
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Montana City MT
 46.55°N 111.91°W (Elev. 4003 ft)
Last Update:
12:31 pm MDT Jun 29, 2026
Forecast Valid:
3pm MDT Jun 29, 2026-6pm MDT Jul 6, 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