Horizon Park Weather Forecast

    • 46
    • 78

    Mostly Sunny

    • 45
    • 80

    Mostly Sunny

    • 48
    • 81

    Partly Sunny

    • 55
    • 82

    Partly Sunny

    • 49
    • 75

    Partly Sunny

    • 48
    • 77

    Mostly Sunny

Today 17 Sep Cascade County below 5000ft

Sunny. Patchy fog in the morning. Highs 75 to 80. South Winds up to 5 Mph shifting to the east in the afternoon.

Tonight 17 Sep Cascade County below 5000ft

Mostly clear. Lows 45 to 50. East Winds up to 10 Mph shifting to the south after midnight.

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Horizon Park Temperature Statistics

September Temperature

Great Falls, Great Falls International Airport (5 miles)

  • Lowest 5 September, 2025

    39.9 °F

  • Average September

    65.3 °F

  • Highest 1 September, 2025

    90 °F

Climate (2020–Present)

Great Falls, Great Falls International Airport (5 miles)

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  • Average Low 2020–2025

    34 °F

  • Average 2020–2025

    46.4 °F

  • Average High 2020–2025

    58.3 °F
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