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

Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Overcast

55°F

13°C

Humidity 71%
Wind Speed NNW 8 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 15 Jul 09:30 PM MDT
Extended Forecast for

Helena MT

  • Tonight

    Tonight: A 50 percent chance of showers before 3am. Cloudy, with a low around 48. Northwest wind 6 to 14 mph, with gusts as high as 24 mph.

    Low: 48 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 75. Calm wind becoming east 5 to 9 mph in the afternoon.

    High: 75 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. East wind 6 to 10 mph becoming south after midnight.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. Northwest wind 9 to 14 mph becoming light west northwest after midnight. Winds could gust as high as 23 mph.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87. Light and variable wind becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54. North wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 91. Light and variable wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 50 percent chance of showers before 3am. Cloudy, with a low around 48. Northwest wind 6 to 14 mph, with gusts as high as 24 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 75. Calm wind becoming east 5 to 9 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 47. East wind 6 to 10 mph becoming south after midnight.
Thursday
Sunny, with a high near 87. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon. Winds could gust as high as 23 mph.
Thursday Night
Mostly clear, with a low around 54. Northwest wind 9 to 14 mph becoming light west northwest after midnight. Winds could gust as high as 23 mph.
Friday
Sunny, with a high near 87. Light and variable wind becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 54. North wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Saturday
Mostly sunny, with a high near 91. Light and variable wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 86.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.61°N 111.99°W (Elev. 3878 ft)
Last Update:
8:53 pm MDT Jul 15, 2025
Forecast Valid:
9pm MDT Jul 15, 2025-6pm MDT Jul 22, 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