Great Falls International Airport Weather Forecast

    • 54
    • 92

    Decreasing Clouds

    • 54
    • 79

    Rain Showers Likely

    • 49
    • 72

    Rain Showers Likely

    • 52
    • 82

    Mostly Sunny

    • 56
    • 85

    Mostly Sunny

    • 59
    • 93

    Mostly Sunny

    • 60
    • 94

    Mostly Sunny

Today 3 Jul Cascade County below 5000ft

Partly cloudy early in the morning then clearing. Highs around 90. West Winds 5 to 15 Mph.

Tonight 3 Jul Cascade County below 5000ft

Mostly cloudy in the evening then clearing. Lows in the mid 50s. West Winds 5 to 15 Mph decreasing to up to 5 Mph after midnight.

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Great Falls International Airport Temperature Statistics

July Temperature

Great Falls, Great Falls International Airport (0.6 miles)

  • Lowest 1 July, 2025

    52 °F

  • Average July

    74.3 °F

  • Highest 1 July, 2025

    90 °F

Climate (2020–Present)

Great Falls, Great Falls International Airport (0.6 miles)

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  • Average Low 2020–2025

    33.9 °F

  • Average 2020–2025

    46.4 °F

  • Average High 2020–2025

    58.3 °F
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