Great Falls Weather Forecast

    • 50
    • 83

    Chance Thunderstorms

    • 52
    • 80

    Chance Rain Showers

    • 50
    • 82

    Slight Chance Rain Showers

    • 51
    • 85

    Mostly Sunny

    • 53
    • 87

    Chance Rain Showers

    • 48
    • 80

    Chance Rain Showers

Today 15 Jun Cascade County below 5000ft

Sunny in the Morning, then mostly cloudy with a 50 percent chance of Thunderstorms in the afternoon. Highs 80 to 85. Northwest Winds up to 5 Mph shifting to the north in the afternoon.

Tonight 15 Jun Cascade County below 5000ft

Partly cloudy. Chance of rain Showers and slight chance of Thunderstorms in the evening. Lows around 50. East Winds up to 10 Mph shifting to the southwest after midnight. Chance of precipitation 50 percent.

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Great Falls Temperature Statistics

June Temperature

Great Falls, Great Falls International Airport (3.7 miles)

  • Lowest 3 June, 2025

    34.6 °F

  • Average June

    61.5 °F

  • Highest 9 June, 2025

    92.6 °F

Climate (2020–Present)

Great Falls, Great Falls International Airport (3.7 miles)

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  • Average Low 2020–2025

    33.9 °F

  • Average 2020–2025

    46.3 °F

  • Average High 2020–2025

    58.2 °F
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