Norcross Weather Forecast

    • 66
    • 86

    Slight Chance Thunderstorms

    • 64
    • 88

    Mostly Sunny

    • 66
    • 90

    Mostly Sunny

    • 66
    • 89

    Partly Sunny

    • 65
    • 86

    Partly Sunny

    • 65
    • 85

    Partly Sunny

Today 17 Sep Gwinnett

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 Gwinnett

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Norcross Temperature Statistics

September Temperature

Atlanta, De Kalb-Peachtree Airport (6.2 miles)

  • Lowest 11 September, 2025

    57.9 °F

  • Average September

    72.5 °F

  • Highest 5 September, 2025

    91.9 °F

Climate (2020–Present)

Atlanta, De Kalb-Peachtree Airport (6.2 miles)

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  • Average Low 2020–2025

    52.9 °F

  • Average 2020–2025

    62.7 °F

  • Average High 2020–2025

    73.1 °F
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