Great Falls Weather Forecast

    • 58
    • 81

    Increasing Clouds

    • 49
    • 87

    Breezy

    • 45
    • 70

    Chance Rain Showers

    • 46
    • 74

    Mostly Sunny

    • 50
    • 79

    Partly Sunny

    • 50
    • 80

    Mostly Cloudy

Today 15 Jun Cascade County below 5000ft

Warmer. Mostly sunny. Highs 76 to 82. West Winds 5 to 10 Mph.

Tonight 15 Jun Cascade County below 5000ft

Warmer. Mostly cloudy. Lows in the upper 50s. Southwest Winds 5 to 15 Mph.

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Great Falls Temperature Statistics

June Temperature

Great Falls, Great Falls International Airport (3.7 miles)

  • Lowest 1 June, 2026

    40.6 °F

  • Average June

    55.8 °F

  • Highest 5 June, 2026

    79.6 °F

Climate (2021–Present)

Great Falls, Great Falls International Airport (3.7 miles)

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  • Average Low 2021–2026

    34.4 °F

  • Average 2021–2026

    47 °F

  • Average High 2021–2026

    59.2 °F
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