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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 45.22°N 112.62°W (Text-Only)
NWS Forecast for: Dillon MT
Issued by: National Weather Service Great Falls, MT
Last Update: 12:31 am MDT Jun 30, 2026		Print

  • Overnight

    Overnight: A chance of showers before 4am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 40. South southwest wind 7 to 9 mph. Chance of precipitation is 30%.

    Low: 40 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 68. Southwest wind 3 to 7 mph.

    High: 68 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday
    Night

    Tuesday Night: Showers and thunderstorms likely, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 42. South southwest wind 3 to 7 mph. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely then
    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 71. Light southwest wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 71 °F

    Sunny then
    Showers
    Likely

  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 43. South wind 3 to 7 mph. Chance of precipitation is 30%.

    Low: 43 °F

    Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 75. Light south southwest wind becoming west southwest 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 75 °F

    Sunny


  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 46. South wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 46 °F

    Partly Cloudy


  • Friday

    Friday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75. Light south southwest wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 75 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday
    Night

    Friday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    T-storms then
    Mostly Clear

    • Overnight: A chance of showers before 4am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 40. South southwest wind 7 to 9 mph. Chance of precipitation is 30%.

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 68. Southwest wind 3 to 7 mph.

    Tuesday Night: Showers and thunderstorms likely, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 42. South southwest wind 3 to 7 mph. Chance of precipitation is 60%.

    Wednesday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 71. Light southwest wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 43. South wind 3 to 7 mph. Chance of precipitation is 30%.

    Thursday: Sunny, with a high near 75. Light south southwest wind becoming west southwest 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.

    Thursday Night: Partly cloudy, with a low around 46. South wind 5 to 11 mph, with gusts as high as 21 mph.

    Friday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75. Light south southwest wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

    Friday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44.

    Independence Day: Sunny, with a high near 79.

    Saturday Night: Clear, with a low around 48.

    Sunday: Sunny, with a high near 84.

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

    Monday: Mostly sunny, with a high near 84.


    Dillon MT
     45.22°N 112.62°W (Elev. 5125 ft)

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