Great Falls Weather Forecast

    • 63
    • 97

    Chance Rain Showers

    • 61
    • 93

    Rain Showers

    • 59
    • 85

    Rain Showers

    • 60
    • 91

    Chance Thunderstorms

    • 61
    • 93

    Chance Rain Showers

    • 60
    • 92

    Mostly Sunny

    • 60
    • 92

    Mostly Sunny

Today 13 Jul Cascade County below 5000ft

Partly cloudy. Highs 90 to 95. East Winds up to 10 Mph.

Tonight 13 Jul Cascade County below 5000ft

Mostly cloudy. A 50 percent chance of Thunderstorms in the evening. Lows 60 to 65. Northeast Winds 5 to 10 Mph shifting to the southeast after midnight.

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Great Falls Temperature Statistics

July Temperature

Great Falls, Great Falls International Airport (3.7 miles)

  • Lowest 6 July, 2026

    44.7 °F

  • Average July

    67.7 °F

  • Highest 11 July, 2026

    96.1 °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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