Great Falls Weather Forecast

    • 49
    • 73

    Chance Rain Showers

    • 43
    • 68

    Rain Showers Likely

    • 49
    • 75

    Chance Rain

    • 42
    • 65

    Chance Rain

    • 48
    • 75

    Partly Sunny

    • 53
    • 81

    Partly Sunny

Today 6 May Cascade County below 5000ft

Warmer, sunny. Highs in the upper 60s. Southwest Winds 5 to 15 Mph with Gusts to around 30 Mph.

Tonight 6 May Cascade County below 5000ft

Warmer. Partly cloudy. Chance of rain Showers and slight chance of Thunderstorms. Highs 68 to 74. Lows 24 to 50. Southwest Winds up to 15 Mph with Gusts to around 30 Mph. Chance of precipitation 50 percent.

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Great Falls Temperature Statistics

May Temperature

Great Falls, Great Falls International Airport (3.7 miles)

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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

    59.1 °F
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