Great Falls Weather Forecast

    • 56
    • 78

    Mostly Cloudy

    • 55
    • 83

    Chance Rain Showers

    • 57
    • 92

    Partly Sunny

    • 56
    • 85

    Mostly Sunny

    • 59
    • 92

    Mostly Sunny

    • 61
    • 96

    Mostly Sunny

    • 62
    • 95

    Partly Sunny

Today 6 Jul Cascade County below 5000ft

Not as warm. Mostly cloudy. A 20 percent chance of rain Showers late in the afternoon. Highs in the mid 70s. East Winds 5 to 15 Mph.

Tonight 6 Jul Cascade County below 5000ft

Mostly cloudy with chance of rain Showers and slight chance of Thunderstorms. Lows in the mid 50s. East Winds 5 to 10 Mph with Gusts to around 25 Mph shifting to the southwest after midnight. Chance of precipitation 50 percent.

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Great Falls Temperature Statistics

July Temperature

Great Falls, Great Falls International Airport (3.7 miles)

  • Lowest 3 July, 2026

    48.7 °F

  • Average July

    66.4 °F

  • Highest 4 July, 2026

    84.9 °F

Climate (2021–2026)

Great Falls, Great Falls International Airport (3.7 miles)

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  • Average Low 2021–2026

    34.3 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    59 °F
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