Stone Mountain Weather Forecast

    • 72
    • 94

    Mostly Sunny

    • 74
    • 95

    Mostly Sunny

    • 75
    • 98

    Hot

    • 73
    • 96

    Chance Thunderstorms

    • 72
    • 93

    Slight Chance Thunderstorms

    • 71
    • 94

    Mostly Sunny

Today 18 Aug DeKalb

Sunny. Near steady temperature in the lower 90s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 18 Aug DeKalb

Mostly clear. Lows around 70. Northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Stone Mountain Temperature Statistics

August Temperature

Atlanta, De Kalb-Peachtree Airport (8.7 miles)

  • Lowest 3 August, 2026

    68.6 °F

  • Average August

    81.2 °F

  • Highest 15 August, 2026

    95.6 °F

Climate (2021–2026)

Atlanta, De Kalb-Peachtree Airport (8.7 miles)

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  • Average Low 2021–2026

    53.3 °F

  • Average 2021–2026

    63.4 °F

  • Average High 2021–2026

    74 °F
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