Tower Rock State Park Weather Forecast

    • 44
    • 66

    Mostly Cloudy

    • 43
    • 63

    Partly Sunny

    • 51
    • 76

    Rain Likely

    • 51
    • 73

    Chance Rain

    • 50
    • 71

    Mostly Sunny

    • 49
    • 75

    Mostly Sunny

    • 50
    • 79

    Mostly Sunny

Today 15 Sep Gates of the Mountains

Sunny. Highs 66 to 72.

Tonight 15 Sep Gates of the Mountains

Mostly cloudy until early Morning, then a 20 percent chance of rain early in the morning. Patchy fog early in the morning. Lows in the lower 40s. North Winds 5 to 15 Mph with Gusts to around 35 Mph.

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  • Temperature Real-Time

Tower Rock State Park Temperature Statistics

September Temperature

Great Falls, Great Falls International Airport (28 miles)

  • Lowest 13 September, 2026

    42.1 °F

  • Average September

    60.6 °F

  • Highest 1 September, 2026

    86.6 °F

Climate (2021–2026)

Great Falls, Great Falls International Airport (28 miles)

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  • Average Low 2021–2026

    34.3 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    59.1 °F
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