Brentwood Weather Forecast

    • 72
    • 93

    Chance Rain Showers

    • 71
    • 91

    Rain Showers Likely

    • 66
    • 84

    Chance Thunderstorms

    • 63
    • 78

    Partly Sunny

    • 62
    • 80

    Partly Sunny

    • 61
    • 81

    Partly Sunny

Today 21 Sep South Fulton

Sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. Light and variable Winds, becoming east around 5 Mph in the afternoon. Chance of rain 20 percent.

Tonight 21 Sep South Fulton

Partly cloudy with a slight chance of Showers. A chance of Thunderstorms, mainly in the evening. Lows around 70. Light and variable Winds. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Brentwood Temperature Statistics

September Temperature

Atlanta, Hartsfield - Jackson Atlanta International Airport (5 miles)

  • Lowest 17 September, 2026

    69.7 °F

  • Average September

    82.6 °F

  • Highest 5 September, 2026

    97.6 °F

Climate (2021–2026)

Atlanta, Hartsfield - Jackson Atlanta International Airport (5 miles)

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  • Average Low 2021–2026

    56.8 °F

  • Average 2021–2026

    65.6 °F

  • Average High 2021–2026

    75.3 °F
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