Snellville Weather Forecast

    • 72
    • 95

    Mostly Sunny

    • 69
    • 91

    Mostly Sunny

    • 65
    • 91

    Mostly Sunny

    • 66
    • 91

    Sunny

    • 69
    • 93

    Mostly Sunny

    • 70
    • 93

    Partly Sunny

    • 70
    • 91

    Chance Rain Showers

Today 14 Sep Gwinnett

Sunny. Highs in the mid 90s. Light northeast Winds.

Tonight 14 Sep Gwinnett

Mostly clear this Evening, then becoming partly cloudy. Lows in the lower 70s. East Winds 5 to 10 Mph.

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Snellville Temperature Statistics

September Temperature

Gwinnett County Airport-Briscoe Field (9.3 miles)

  • Lowest 9 September, 2026

    66.2 °F

  • Average September

    79.7 °F

  • Highest 5 September, 2026

    98.1 °F

Climate (2021–2026)

Gwinnett County Airport-Briscoe Field (9.3 miles)

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  • Average Low 2021–2026

    53.4 °F

  • Average 2021–2026

    62.4 °F

  • Average High 2021–2026

    72.4 °F
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