National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Possible Flooding This Week

Hot temperatures and high humidity are forecast to continue across much of east Texas into the mid-Mississippi Valley through this week. Heavy to excessive rainfall occurring at times through Friday could bring areas of flooding across parts of the central Plains into the upper Midwest and Four Corners states. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Overcast

66°F

19°C

Humidity 37%
Wind Speed N 10 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 15 Sep 06:20 PM MDT
Extended Forecast for

Helena MTSimilar City Names

  • Tonight

    Tonight: Partly cloudy, with a low around 47. West northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66. Light and variable wind becoming north 5 to 8 mph in the morning.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. North northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. Calm wind becoming east around 6 mph in the afternoon.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 9pm, then rain likely between 9pm and midnight. Mostly cloudy, with a low around 53. West wind around 6 mph becoming calm after midnight. Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: A chance of rain, then showers and possibly a thunderstorm after noon. High near 73. Calm wind becoming north northwest around 6 mph in the afternoon. Chance of precipitation is 80%.

    High: 73 °F

    Chance Rain
    then Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 53. Northwest wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely then
    Chance Rain

  • Saturday

    Saturday: A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 71. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 71 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 47. West northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Wednesday
Mostly sunny, with a high near 66. Light and variable wind becoming north 5 to 8 mph in the morning.
Wednesday Night
Mostly clear, with a low around 47. North northwest wind 5 to 7 mph becoming calm after midnight.
Thursday
Sunny, with a high near 78. Calm wind becoming east around 6 mph in the afternoon.
Thursday Night
Showers likely and possibly a thunderstorm before 9pm, then rain likely between 9pm and midnight. Mostly cloudy, with a low around 53. West wind around 6 mph becoming calm after midnight. Chance of precipitation is 70%.
Friday
A chance of rain, then showers and possibly a thunderstorm after noon. High near 73. Calm wind becoming north northwest around 6 mph in the afternoon. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 53. Northwest wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 70%.
Saturday
A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 71. Calm wind becoming west northwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MTSimilar City Names
 46.58°N 112.04°W (Elev. 4413 ft)
Last Update:
4:21 pm MDT Sep 15, 2026
Forecast Valid:
6pm MDT Sep 15, 2026-6pm MDT Sep 22, 2026
 
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Additional Resources

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Chance of Precipitation