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

57°F

14°C

Humidity 68%
Wind Speed N 12 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 15 Jul 07:53 PM MDT
Extended Forecast for

Helena MT

  • Tonight

    Tonight: A 50 percent chance of rain, mainly before midnight.  Patchy fog after 3am.  Otherwise, cloudy, with a low around 47. Northwest wind 5 to 14 mph, with gusts as high as 26 mph.

    Low: 47 °F

    Chance Rain
    then Slight
    Chance Rain
    and Patchy
    Fog

  • Wednesday

    Wednesday: Areas of fog before 9am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 74. Calm wind becoming east 5 to 8 mph in the afternoon.

    High: 74 °F

    Areas Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. East wind 5 to 8 mph becoming light and variable  after midnight.

    Low: 45 °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 52. Northwest wind 6 to 11 mph becoming light west northwest  after midnight. Winds could gust as high as 22 mph.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86. Calm wind becoming north 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. North wind 5 to 9 mph becoming calm  after midnight. Winds could gust as high as 18 mph.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 91. Light and variable wind becoming west 5 to 10 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 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 50 percent chance of rain, mainly before midnight. Patchy fog after 3am. Otherwise, cloudy, with a low around 47. Northwest wind 5 to 14 mph, with gusts as high as 26 mph.
Wednesday
Areas of fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 74. Calm wind becoming east 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 45. East wind 5 to 8 mph becoming light and variable 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 52. Northwest wind 6 to 11 mph becoming light west northwest after midnight. Winds could gust as high as 22 mph.
Friday
Sunny, with a high near 86. Calm wind becoming north 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 53. North wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Saturday
Mostly sunny, with a high near 91. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 85.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 53.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.6°N 112.05°W (Elev. 3973 ft)
2:26 pm MDT Jul 15, 2025
8pm MDT Jul 15, 2025-6pm MDT Jul 22, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database