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Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

7-Day Forecast 46.59°N 111.98°W (Text-Only)
NWS Forecast for: Helena MT
Issued by: National Weather Service Great Falls, MT
Last Update: 8:28 pm MDT Jul 12, 2025		Print

  • Overnight

    Overnight: Mostly clear, with a low around 59. West southwest wind 6 to 8 mph.

    Low: 59 °F

    Mostly Clear



  • Sunday

    Sunday: Sunny, with a high near 93. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 93 °F

    Sunny



  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 61. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.

    Low: 61 °F

    Mostly Clear



  • Monday

    Monday: Sunny, with a high near 91. Light and variable wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph.

    High: 91 °F

    Sunny



  • Monday
    Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54. North northwest wind 9 to 16 mph, with gusts as high as 28 mph.

    Low: 54 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 66. North wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 66 °F

    Showers
    Likely


  • Tuesday
    Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. North northwest wind 6 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    Low: 49 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers. Partly sunny, with a high near 72. Light and variable wind becoming north northeast 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 72 °F

    Slight Chance
    Showers


  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear



    • Overnight: Mostly clear, with a low around 59. West southwest wind 6 to 8 mph.

    Sunday: Sunny, with a high near 93. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

    Sunday Night: Mostly clear, with a low around 61. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.

    Monday: Sunny, with a high near 91. Light and variable wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph.

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54. North northwest wind 9 to 16 mph, with gusts as high as 28 mph.

    Tuesday: Showers likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 66. North wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. North northwest wind 6 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    Wednesday: A slight chance of showers. Partly sunny, with a high near 72. Light and variable wind becoming north northeast 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    Wednesday Night: Mostly clear, with a low around 48.

    Thursday: Sunny, with a high near 81.

    Thursday Night: Mostly clear, with a low around 52.

    Friday: Mostly sunny, with a high near 86.

    Friday Night: Mostly clear, with a low around 54.

    Saturday: Sunny, with a high near 90.


    Helena MT
     46.59°N 111.98°W (Elev. 3996 ft)

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