Suwanee Weather Forecast

    • 65
    • 87

    Mostly Sunny

    • 65
    • 88

    Mostly Sunny

    • 64
    • 88

    Slight Chance Thunderstorms

    • 64
    • 85

    Partly Sunny

    • 65
    • 84

    Partly Sunny

    • 65
    • 84

    Slight Chance Thunderstorms

Today 18 Sep Gwinnett

Sunny. Highs in the upper 80s. Light northeast Winds.

Tonight 18 Sep Gwinnett

Mostly clear. Lows in the mid 60s. Light east Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Suwanee Temperature Statistics

September Temperature

Gwinnett County Airport-Briscoe Field (7.5 miles)

  • Lowest 11 September, 2025

    60.1 °F

  • Average September

    72.6 °F

  • Highest 5 September, 2025

    88 °F

Climate (2020–Present)

Gwinnett County Airport-Briscoe Field (7.5 miles)

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  • Average Low 2020–2025

    52.9 °F

  • Average 2020–2025

    62 °F

  • Average High 2020–2025

    72 °F
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