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Excessive Rainfall and Severe Thunderstorms Threaten the Southern U.S. Again Thursday

A Moderate Risk (Level 3 of 4) Excessive Rainfall Outlook and Flood Watches have been issued for portions of east Texas into Louisiana Thursday where flash, urban, and riverine flooding is possible. A Slight Risk (Level 2 of 5) for scattered severe thunderstorms has been issued from west Texas to the lower Mississippi Valley Thursday afternoon into Thursday night. 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: 5:39 am MDT May 16, 2024		Print

  • This
    Afternoon

    This Afternoon: Mostly cloudy, with a high near 26. Breezy, with a west wind 29 to 37 km/h, with gusts as high as 65 km/h.

    High: 26 °C

    Mostly Cloudy
    and Breezy


  • Tonight

    Tonight: A 20 percent chance of rain after 5am. Mostly clear, with a low around 11. Breezy, with a southwest wind 27 to 37 km/h decreasing to 13 to 23 km/h. Winds could gust as high as 65 km/h.

    Low: 11 °C

    Mostly Clear
    and Breezy
    then Slight
    Chance Rain

  • Friday

    Friday: A 40 percent chance of rain. Partly sunny, with a high near 18. Windy, with a west wind 14 to 24 km/h increasing to 38 to 48 km/h. Winds could gust as high as 75 km/h.

    High: 18 °C

    Chance Rain
    and Windy


  • Friday
    Night

    Friday Night: A 20 percent chance of rain before midnight. Partly cloudy, with a low around 4. Windy, with a west wind 38 to 48 km/h decreasing to 18 to 28 km/h after midnight. Winds could gust as high as 80 km/h.

    Low: 4 °C

    Slight Chance
    Rain and
    Windy then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 19. Southwest wind 13 to 18 km/h, with gusts as high as 37 km/h.

    High: 19 °C

    Mostly Sunny



  • Saturday
    Night

    Saturday Night: A 20 percent chance of rain after midnight. Partly cloudy, with a low around 5. West wind 16 to 21 km/h decreasing to 5 to 10 km/h after midnight. Winds could gust as high as 37 km/h.

    Low: 5 °C

    Partly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 14. West wind 8 to 13 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 45 km/h. Chance of precipitation is 50%.

    High: 14 °C

    Chance
    Showers


  • Sunday
    Night

    Sunday Night: A slight chance of rain before midnight. Partly cloudy, with a low around 2. West southwest wind 19 to 24 km/h decreasing to 8 to 13 km/h after midnight. Winds could gust as high as 45 km/h.

    Low: 2 °C

    Slight Chance
    Rain then
    Partly Cloudy

  • Monday

    Monday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 16.

    High: 16 °C

    Mostly Sunny
    then Chance
    Showers

    • This Afternoon: Mostly cloudy, with a high near 26. Breezy, with a west wind 29 to 37 km/h, with gusts as high as 65 km/h.

    Tonight: A 20 percent chance of rain after 5am. Mostly clear, with a low around 11. Breezy, with a southwest wind 27 to 37 km/h decreasing to 13 to 23 km/h. Winds could gust as high as 65 km/h.

    Friday: A 40 percent chance of rain. Partly sunny, with a high near 18. Windy, with a west wind 14 to 24 km/h increasing to 38 to 48 km/h. Winds could gust as high as 75 km/h.

    Friday Night: A 20 percent chance of rain before midnight. Partly cloudy, with a low around 4. Windy, with a west wind 38 to 48 km/h decreasing to 18 to 28 km/h after midnight. Winds could gust as high as 80 km/h.

    Saturday: Mostly sunny, with a high near 19. Southwest wind 13 to 18 km/h, with gusts as high as 37 km/h.

    Saturday Night: A 20 percent chance of rain after midnight. Partly cloudy, with a low around 5. West wind 16 to 21 km/h decreasing to 5 to 10 km/h after midnight. Winds could gust as high as 37 km/h.

    Sunday: A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 14. West wind 8 to 13 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 45 km/h. Chance of precipitation is 50%.

    Sunday Night: A slight chance of rain before midnight. Partly cloudy, with a low around 2. West southwest wind 19 to 24 km/h decreasing to 8 to 13 km/h after midnight. Winds could gust as high as 45 km/h.

    Monday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 16.

    Monday Night: A slight chance of rain before midnight. Partly cloudy, with a low around 4.

    Tuesday: A chance of rain and thunderstorms. Mostly sunny, with a high near 18.

    Tuesday Night: A chance of rain. Mostly cloudy, with a low around 6.

    Wednesday: Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 17.


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

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