Strong to Severe Thunderstorms in the East; Heat in the Central and Western U.S.

Strong to potentially severe thunderstorms with damaging wind gusts are forecast Thursday from parts of New England into the Mid Atlantic and Carolinas. Significant heat will expand across the West and Central Plains through Friday, potentially breaking daily high temperature records. Dangerous heat will then build into the Eastern U.S. this weekend through much of next week. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

70°F

21°C

Humidity 28%
Wind Speed WSW 10 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 18 Jun 10:35 PM MDT
Extended Forecast for

Montana City MT

  • Tonight

    Tonight: Mostly clear, with a low around 49. West southwest wind 3 to 5 mph.

    Low: 49 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: A slight chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm.  Mostly sunny, with a high near 85. Calm wind becoming northeast 5 to 8 mph in the afternoon.  Chance of precipitation is 50%.

    High: 85 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and midnight, then a chance of showers after midnight.  Mostly cloudy, with a low around 52. North wind 5 to 8 mph becoming calm  after midnight.  Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely

  • Friday

    Friday: A chance of rain, then showers and possibly a thunderstorm after noon.  High near 73. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 90%.

    High: 73 °F

    Chance Rain
    then Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm.  Low around 42. Northwest wind 5 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%.

    Low: 42 °F

    Showers

  • Saturday

    Saturday: Rain before noon, then showers likely and possibly a thunderstorm after noon.  High near 61. West wind 6 to 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%.

    High: 61 °F

    Showers

  • Saturday Night

    Saturday Night: Rain likely.  Mostly cloudy, with a low around 37. West northwest wind 6 to 14 mph, with gusts as high as 23 mph.  Chance of precipitation is 70%.

    Low: 37 °F

    Rain Likely

  • Sunday

    Sunday: Rain before noon, then showers and possibly a thunderstorm after noon.  Cloudy, with a high near 55. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 55 °F

    Showers

  • Sunday Night

    Sunday Night: A slight chance of rain before midnight.  Partly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain then
    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 49. West southwest wind 3 to 5 mph.
Juneteenth
A slight chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 85. Calm wind becoming northeast 5 to 8 mph in the afternoon. Chance of precipitation is 50%.
Thursday Night
Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and midnight, then a chance of showers after midnight. Mostly cloudy, with a low around 52. North wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 60%.
Friday
A chance of rain, then showers and possibly a thunderstorm after noon. High near 73. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%.
Friday Night
Showers and possibly a thunderstorm. Low around 42. Northwest wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.
Saturday
Rain before noon, then showers likely and possibly a thunderstorm after noon. High near 61. West wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Saturday Night
Rain likely. Mostly cloudy, with a low around 37. West northwest wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Sunday
Rain before noon, then showers and possibly a thunderstorm after noon. Cloudy, with a high near 55. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
A slight chance of rain before midnight. Partly cloudy, with a low around 35.
Monday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 66.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 41.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Montana City MT
 46.53°N 111.94°W (Elev. 4199 ft)
7:50 pm MDT Jun 18, 2025
10pm MDT Jun 18, 2025-6pm MDT Jun 25, 2025
 
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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