Great Falls Weather Forecast

    • 54
    • 89

    Areas Smoke

    • 54
    • 88

    Areas Smoke

    • 52
    • 79

    Rain Showers

    • 49
    • 70

    Rain Showers

    • 47
    • 70

    Chance Rain Showers

    • 50
    • 78

    Slight Chance Thunderstorms

    • 53
    • 84

    Chance Rain Showers

Today 10 Aug Cascade County below 5000ft

Sunny. Areas of smoke. Highs in the upper 80s. West Winds 5 to 10 Mph with Gusts to around 25 Mph.

Tonight 10 Aug Cascade County below 5000ft

Mostly clear. Patchy smoke until early Morning, then Areas of smoke early in the morning. Lows in the mid 50s. West Winds up to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Great Falls Temperature Statistics

August Temperature

Great Falls, Great Falls International Airport (3.7 miles)

  • Lowest 4 August, 2026

    38.6 °F

  • Average August

    66.7 °F

  • Highest 1 August, 2026

    102.7 °F

Climate (2021–2026)

Great Falls, Great Falls International Airport (3.7 miles)

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  • Average Low 2021–2026

    34.3 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    59 °F
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