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

Prolonged, Intense Heat Wave; Excessive Rainfall in the Southern Rockies and Central Plains into the Upper Midwest

Extremely dangerous heat persists through Thursday with widespread daily temperature records. Monsoonal moisture continues to bring heavy rain and flash flooding to New Mexico and west Texas through Thursday, especially in the burn scar areas. Thunderstorms and heavy to excessive rain will continue to bring a flash flood threat from the Central Plains into the Upper Midwest. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

48°F

9°C

Humidity 76%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 25 Jun 05:00 AM MDT
Extended Forecast for

Montana City MT

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 80. Calm wind becoming east northeast 5 to 7 mph in the afternoon.

    High: 80 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Mostly cloudy, with a low around 52. North wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 78. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 78 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53. West wind 5 to 8 mph becoming calm after midnight.

    Low: 53 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after noon. Mostly sunny, with a high near 78. Light west southwest wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 78 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50. West northwest wind 8 to 13 mph becoming light west southwest after midnight. Winds could gust as high as 22 mph.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77. Light west southwest wind becoming west northwest 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49. Northwest wind 8 to 13 mph becoming light west southwest after midnight. Winds could gust as high as 23 mph.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 80. Calm wind becoming east northeast 5 to 7 mph in the afternoon.
Tonight
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Mostly cloudy, with a low around 52. North wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 20%.
Thursday
A 50 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 78. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53. West wind 5 to 8 mph becoming calm after midnight.
Friday
A 30 percent chance of showers after noon. Mostly sunny, with a high near 78. Light west southwest wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Friday Night
Partly cloudy, with a low around 50. West northwest wind 8 to 13 mph becoming light west southwest after midnight. Winds could gust as high as 22 mph.
Saturday
Sunny, with a high near 77. Light west southwest wind becoming west northwest 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Saturday Night
Mostly clear, with a low around 49. Northwest wind 8 to 13 mph becoming light west southwest after midnight. Winds could gust as high as 23 mph.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montana City MT
 46.55°N 111.94°W (Elev. 4199 ft)
Last Update:
2:18 am MDT Jun 25, 2025
Forecast Valid:
5am MDT Jun 25, 2025-6pm MDT Jul 1, 2025
 
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