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

72°F

22°C

Humidity 43%
Wind Speed WSW 9 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 14 Aug 10:20 PM MDT
Extended Forecast for

4 Miles SSW Helena MT

  • Tonight

    Tonight: Mostly clear, with a low around 56. West southwest wind 3 to 5 mph.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Widespread haze between 2pm and 4pm. Sunny, with a high near 82. Calm wind becoming west northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 82 °F

    Sunny then
    Haze

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. West northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 83 °F

    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 7 mph becoming calm  after midnight.

    Low: 56 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 79. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 79 °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. South southwest wind 5 to 7 mph.

    Low: 55 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 81. Light and variable wind becoming east southeast around 6 mph in the afternoon.

    High: 81 °F

    Sunny

  • Monday Night

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

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 56. West southwest wind 3 to 5 mph.
Friday
Widespread haze between 2pm and 4pm. Sunny, with a high near 82. Calm wind becoming west northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Friday Night
Mostly clear, with a low around 59. West northwest wind 5 to 7 mph becoming calm in the evening.
Saturday
Sunny, with a high near 83. Calm wind becoming west southwest around 6 mph in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56. West northwest wind 5 to 7 mph becoming calm after midnight.
Sunday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79. Calm wind becoming west southwest around 6 mph in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55. South southwest wind 5 to 7 mph.
Monday
Sunny, with a high near 81. Light and variable wind becoming east southeast around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Helena MT
 46.53°N 112.1°W (Elev. 5367 ft)
7:03 pm MDT Aug 14, 2025
10pm MDT Aug 14, 2025-6pm MDT Aug 21, 2025
 
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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