Great Falls Weather Forecast

    • 51
    • 76

    Breezy

    • 40
    • 62

    Chance Rain Showers

    • 40
    • 65

    Partly Sunny

    • 37
    • 58

    Rain Showers Likely

    • 38
    • 62

    Chance Rain Showers

    • 42
    • 65

    Chance Rain

    • 40
    • 59

    Chance Rain

Today 16 May Cascade County below 5000ft

Windy. Mostly cloudy. A 20 percent chance of rain in the morning. Highs in the mid 70s. Southwest Winds 25 to 35 Mph with Gusts to around 50 Mph.

Tonight 16 May Cascade County below 5000ft

Breezy. Mostly clear. Lows around 50. Southwest Winds 15 to 25 Mph.

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Great Falls Temperature Statistics

May Temperature

Great Falls, Great Falls International Airport (3.7 miles)

  • Lowest 1 May, 2024

    21.8 °F

  • Average May

    48.2 °F

  • Highest 11 May, 2024

    78.7 °F

Climate (2019–Present)

Great Falls, Great Falls International Airport (3.7 miles)

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  • Average Low 2019–2024

    33.8 °F

  • Average 2019–2024

    45.7 °F

  • Average High 2019–2024

    57.3 °F
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