Pony Weather Forecast

    • 49
    • 67

    Mostly Sunny

    • 52
    • 74

    Mostly Sunny

    • 53
    • 74

    Partly Sunny

    • 51
    • 73

    Partly Sunny

    • 47
    • 68

    Mostly Sunny

    • 51
    • 71

    Mostly Sunny

Today 17 Sep Gallatin and Madison County Mountains and Centennial Mountains

Partly cloudy in the morning then clearing. Patchy fog in the morning. Highs 55 to 65. Northeast Winds up to 10 Mph.

Tonight 17 Sep Gallatin and Madison County Mountains and Centennial Mountains

Mostly clear. Lows 35 to 45. Northeast Winds up to 10 Mph shifting to the southeast after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Pony Temperature Statistics

September Temperature

Ennis - Big Sky Airport (28.6 miles)

  • Lowest 5 September, 2025

    39.2 °F

  • Average September

    61.6 °F

  • Highest 2 September, 2025

    87.8 °F

Climate (2020–Present)

Ennis - Big Sky Airport (28.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    31.3 °F

  • Average 2020–2025

    43.7 °F

  • Average High 2020–2025

    55.7 °F
Get WillyWeather+ to remove ads