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7-Day Forecast 44.98°N 111.27°W (Text-Only)
NWS Forecast for: 20 Miles S Big Sky MT
Issued by: National Weather Service Great Falls, MT
Last Update: 8:29 am MDT Jul 15, 2025		Print

  • This
    Afternoon

    This Afternoon: Showers and possibly a thunderstorm before 5pm, then showers and thunderstorms likely after 5pm. High near 61. West southwest wind 11 to 13 mph becoming north northwest. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    T-storms



  • Tonight

    Tonight: Showers and thunderstorms likely before midnight, then a slight chance of rain between midnight and 4am. Mostly cloudy, with a low around 41. North northeast wind 10 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    Low: 41 °F

    Showers
    Likely then
    Slight Chance
    Rain

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 60. North northeast wind 7 to 10 mph becoming west northwest in the afternoon.

    High: 60 °F

    Decreasing
    Clouds


  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 46. West northwest wind 7 to 10 mph becoming east in the evening.

    Low: 46 °F

    Mostly Clear



  • Thursday

    Thursday: Sunny, with a high near 67. South wind 9 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 28 mph.

    High: 67 °F

    Sunny



  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 47. West wind 6 to 14 mph, with gusts as high as 24 mph.

    Low: 47 °F

    Mostly Clear



  • Friday

    Friday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 67. South wind 5 to 11 mph becoming west in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

    High: 67 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 48. West wind 6 to 10 mph becoming southeast after midnight. Winds could gust as high as 21 mph.

    Low: 48 °F

    Partly Cloudy



  • Saturday

    Saturday: A slight chance of showers and thunderstorms after noon. Sunny, with a high near 68.

    High: 68 °F

    Sunny then
    Slight Chance
    T-storms



    • This Afternoon: Showers and possibly a thunderstorm before 5pm, then showers and thunderstorms likely after 5pm. High near 61. West southwest wind 11 to 13 mph becoming north northwest. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Tonight: Showers and thunderstorms likely before midnight, then a slight chance of rain between midnight and 4am. Mostly cloudy, with a low around 41. North northeast wind 10 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 60. North northeast wind 7 to 10 mph becoming west northwest in the afternoon.

    Wednesday Night: Mostly clear, with a low around 46. West northwest wind 7 to 10 mph becoming east in the evening.

    Thursday: Sunny, with a high near 67. South wind 9 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 28 mph.

    Thursday Night: Mostly clear, with a low around 47. West wind 6 to 14 mph, with gusts as high as 24 mph.

    Friday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 67. South wind 5 to 11 mph becoming west in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

    Friday Night: Partly cloudy, with a low around 48. West wind 6 to 10 mph becoming southeast after midnight. Winds could gust as high as 21 mph.

    Saturday: A slight chance of showers and thunderstorms after noon. Sunny, with a high near 68.

    Saturday Night: Partly cloudy, with a low around 48.

    Sunday: Sunny, with a high near 67.

    Sunday Night: Partly cloudy, with a low around 47.

    Monday: Mostly sunny, with a high near 65.


    20 Miles S Big Sky MT
     44.98°N 111.27°W (Elev. 8947 ft)

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