Great Falls Weather Forecast

    • 43
    • 61

    Chance Rain Showers

    • 48
    • 73

    Partly Sunny

    • 49
    • 77

    Partly Sunny

    • 51
    • 79

    Slight Chance Thunderstorms

    • 52
    • 82

    Chance Thunderstorms

    • 47
    • 71

    Chance Rain Showers

Today 22 Jun Cascade County below 5000ft

Partly sunny. Slight chance of Thunderstorms early in the Afternoon, then chance of rain Showers and slight chance of Thunderstorms late in the afternoon. Highs in the mid 60s. North Winds 5 to 10 Mph. Chance of precipitation 50 percent.

Tonight 22 Jun Cascade County below 5000ft

Mostly clear. Lows in the lower 40s. Northwest Winds up to 10 Mph.

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Great Falls Temperature Statistics

June Temperature

Great Falls, Great Falls International Airport (3.7 miles)

  • Lowest 14 June, 2026

    38.6 °F

  • Average June

    57.7 °F

  • Highest 16 June, 2026

    85.6 °F

Climate (2021–2026)

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

    59.2 °F
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