Great Falls Weather Forecast

    • 64
    • 91

    Mostly Cloudy

    • 59
    • 92

    Partly Sunny

    • 60
    • 92

    Mostly Sunny

    • 60
    • 92

    Chance Rain Showers

    • 57
    • 83

    Chance Rain Showers

    • 52
    • 77

    Slight Chance Rain Showers

    • 50
    • 75

    Chance Rain Showers

Today 2 Aug Cascade

Mostly cloudy. Slight chance of rain Showers early in the Morning, then chance of Thunderstorms in the afternoon. Haze and Areas of smoke through the day. Some Thunderstorms may produce heavy rainfall in the afternoon. Highs 80 to 90. West Winds 5 to 15 Mph. Chance of precipitation 50 percent.

Tonight 2 Aug Cascade

Cooler. Mostly cloudy. Rain Showers likely and chance of Thunderstorms in the Evening, then slight chance of Thunderstorms after midnight. Haze and Areas of smoke through the night. Some Thunderstorms may produce gusty Winds and heavy rainfall in the evening. Some Thunderstorms may produce gusty Winds and heavy rainfall after midnight. Lows 60 to 65. Southwest Winds 10 to 15 Mph becoming 5 to 15 Mph after midnight. Chance of precipitation 70 percent.

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Great Falls Temperature Statistics

August Temperature

Great Falls, Great Falls International Airport (3.7 miles)

  • Lowest

  • Average August

  • Highest

Climate (2010–Present)

Great Falls, Great Falls International Airport (3.7 miles)

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  • Average Low 2010–Present

    33.3 °F
  • Average 2010–Present

    44.8 °F
  • Average High 2010–Present

    56.2 °F
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