Severe Thunderstorms in the Ohio Valley and Mid-Atlantic; Heat Continuing in the Central U.S.

Widespread strong to severe thunderstorms are expected from the Upper Ohio Valley into the Mid-Atlantic through Friday, with damaging winds as the primary threat. Dangerous heat will continue from the South-Central U.S. to the Midwest, Ohio/Tennessee valleys, and Mid-Atlantic. Widespread Major to Extreme Heat Risk is forecast into the weekend and will confine to the South-Central U.S. by Labor Day Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

64°F

18°C

Humidity 45%
Wind Speed WSW 5 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 03 Sep 11:00 PM MDT
Extended Forecast for

4 Miles WNW Helena MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. Light west wind.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers between 3pm and 5pm.  Increasing clouds, with a high near 77. Calm wind becoming west southwest 5 to 8 mph in the afternoon.  Chance of precipitation is 20%.

    High: 77 °F

    Sunny then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 3am, then a chance of showers after 5am.  Mostly cloudy, with a low around 51. Northwest wind 5 to 8 mph.  Chance of precipitation is 50%.

    Low: 51 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before noon.  Cloudy through mid morning, then gradual clearing, with a high near 75. Light north northwest wind becoming north northeast 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 75 °F

    Slight Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight.  Partly cloudy, with a low around 50. North wind 8 to 13 mph becoming light northwest  after midnight. Winds could gust as high as 22 mph.

    Low: 50 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 75. Calm wind becoming north northeast 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 75 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm.  Low around 53. North wind 8 to 13 mph becoming light northwest  after midnight. Winds could gust as high as 21 mph.  Chance of precipitation is 80%.

    Low: 53 °F

    Showers

  • Labor Day

    Labor Day: Showers likely, then showers and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 69. Light west southwest wind becoming west 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 69 °F

    Showers

  • Monday Night

    Monday Night: A chance of showers.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 51. Light west wind.
Friday
A slight chance of showers between 3pm and 5pm. Increasing clouds, with a high near 77. Calm wind becoming west southwest 5 to 8 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
A chance of showers before 3am, then a chance of showers after 5am. Mostly cloudy, with a low around 51. Northwest wind 5 to 8 mph. Chance of precipitation is 50%.
Saturday
A 20 percent chance of showers before noon. Cloudy through mid morning, then gradual clearing, with a high near 75. Light north northwest wind becoming north northeast 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 50. North wind 8 to 13 mph becoming light northwest after midnight. Winds could gust as high as 22 mph.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 75. Calm wind becoming north northeast 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Sunday Night
Showers and possibly a thunderstorm. Low around 53. North wind 8 to 13 mph becoming light northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%.
Labor Day
Showers likely, then showers and possibly a thunderstorm after noon. Mostly cloudy, with a high near 69. Light west southwest wind becoming west 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph.
Monday Night
A chance of showers. Mostly cloudy, with a low around 48.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Helena MT
 46.62°N 112.11°W (Elev. 4055 ft)
4:52 pm MDT Sep 3, 2026
11pm MDT Sep 3, 2026-6pm MDT Sep 10, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database