Austell Weather Forecast

    • 65
    • 87

    Slight Chance Thunderstorms

    • 62
    • 89

    Mostly Sunny

    • 65
    • 92

    Mostly Sunny

    • 66
    • 91

    Partly Sunny

    • 65
    • 87

    Mostly Sunny

    • 65
    • 87

    Partly Sunny

Today 17 Sep Cobb

Sunny with a slight chance of Showers and Thunderstorms. Highs in the mid 80s. Light northwest Winds. Chance of rain 20 percent.

Tonight 17 Sep Cobb

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 60s. Light north Winds in the Evening, becoming light and variable.

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Austell Temperature Statistics

September Temperature

Fulton County Airport-Brown Field (6.2 miles)

  • Lowest 10 September, 2025

    55.9 °F

  • Average September

    72.8 °F

  • Highest 5 September, 2025

    90 °F

Climate (2020–Present)

Fulton County Airport-Brown Field (6.2 miles)

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  • Average Low 2020–2025

    53.3 °F

  • Average 2020–2025

    63.5 °F

  • Average High 2020–2025

    74.1 °F
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