Great Falls International Airport Weather Forecast

    • 34
    • 57

    Slight Chance Rain

    • 30
    • 53

    Partly Sunny

    • 47
    • 69

    Chance Rain

    • 45
    • 66

    Chance Rain Showers

    • 46
    • 73

    Mostly Cloudy

    • 44
    • 66

    Chance Rain Showers

Today 4 May Cascade County below 5000ft

Cooler. Mostly cloudy. Chance of rain Showers in the Morning, then slight chance of rain Showers in the afternoon. Highs in the mid 50s. North Winds 5 to 15 Mph. Chance of Showers 50 percent.

Tonight 4 May Cascade County below 5000ft

Mostly cloudy. Lows in the mid 30s. Northeast Winds up to 15 Mph.

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Great Falls International Airport Temperature Statistics

May Temperature

Great Falls, Great Falls International Airport (0.6 miles)

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Climate (2021–Present)

Great Falls, Great Falls International Airport (0.6 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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