Stone Mountain Weather Forecast

    • 64
    • 85

    Partly Sunny

    • 63
    • 86

    Mostly Sunny

    • 65
    • 85

    Partly Sunny

    • 66
    • 87

    Mostly Sunny

    • 66
    • 90

    Mostly Sunny

    • 65
    • 87

    Chance Rain Showers

Today 15 Sep DeKalb

Sunny. Highs in the mid 80s. Light east Winds.

Tonight 15 Sep DeKalb

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Stone Mountain Temperature Statistics

September Temperature

Atlanta, De Kalb-Peachtree Airport (8.7 miles)

  • Lowest 11 September, 2025

    57.9 °F
  • Average September

    72.4 °F
  • Highest 5 September, 2025

    91.9 °F

Climate (2020–Present)

Atlanta, De Kalb-Peachtree Airport (8.7 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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