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Heat in the Central U.S.; Heavy Rain Possible for South Texas; Monitoring Erin Tropical Impacts

Hot temperatures are forecast over the Plains and into the lower Mississippi River Valley Friday where Heat Advisories have been issued. Heavy rain from a disturbance in the western Gulf could bring flooding to south Texas. Erin could bring tropical storm conditions and heavy rain to Puerto Rico and the USVI this weekend with dangerous surf and rip currents impacting the western Atlantic Basin. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

66°F

19°C

Humidity 54%
Wind Speed W 6 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 15 Aug 12:53 AM MDT
Extended Forecast for

East Helena MT

  • Overnight

    Overnight: Mostly clear, with a low around 54. West southwest wind around 6 mph becoming calm.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56. West northwest wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 18 mph.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 90. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 90 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56. West northwest wind 5 to 9 mph becoming light west southwest after midnight. Winds could gust as high as 18 mph.

    Low: 56 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85. Calm wind becoming west northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55. West wind 6 to 9 mph becoming south southwest after midnight.

    Low: 55 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 88. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 54. West southwest wind around 6 mph becoming calm.
Friday
Sunny, with a high near 88. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 56. West northwest wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 18 mph.
Saturday
Mostly sunny, with a high near 90. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56. West northwest wind 5 to 9 mph becoming light west southwest after midnight. Winds could gust as high as 18 mph.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85. Calm wind becoming west northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55. West wind 6 to 9 mph becoming south southwest after midnight.
Monday
Mostly sunny, with a high near 88. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
East Helena MT
 46.59°N 111.92°W (Elev. 3891 ft)
Last Update:
7:03 pm MDT Aug 14, 2025
Forecast Valid:
1am MDT Aug 15, 2025-6pm MDT Aug 21, 2025
 
Forecast Discussion
 
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Additional Resources

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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