Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

65°F

18°C

Humidity 29%
Wind Speed W 8 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 30 Aug 07:53 PM MDT
Extended Forecast for

East Helena MT

  • Tonight

    Tonight: Partly cloudy, with a low around 44. West wind 5 to 11 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 78. Calm wind becoming east 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46. East wind around 6 mph becoming calm  in the evening.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. Calm wind becoming east southeast 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers before midnight.  Mostly cloudy, with a low around 51. East southeast wind 5 to 9 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.

    Low: 51 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 81. Light south southeast wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 81 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47. West wind 5 to 10 mph.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77. South wind 5 to 13 mph, with gusts as high as 18 mph.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 44. West wind 5 to 11 mph becoming south after midnight. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 78. Calm wind becoming east 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Partly cloudy, with a low around 46. East wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 83. Calm wind becoming east southeast 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
A 40 percent chance of showers before midnight. Mostly cloudy, with a low around 51. East southeast wind 5 to 9 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.
Wednesday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 81. Light south southeast wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 47. West wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 77. South wind 5 to 13 mph, with gusts as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 49.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
East Helena MT
 46.6°N 111.89°W (Elev. 3894 ft)
12:31 pm MDT Aug 30, 2026
8pm MDT Aug 30, 2026-6pm MDT Sep 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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