Stone Mountain Weather Forecast

    • 74
    • 93

    Chance Thunderstorms

    • 74
    • 92

    Chance Rain Showers

    • 75
    • 92

    Slight Chance Thunderstorms

    • 74
    • 92

    Chance Thunderstorms

    • 72
    • 90

    Chance Thunderstorms

    • 72
    • 88

    Slight Chance Thunderstorms

Today 19 Jul DeKalb

Sunny this Morning, then partly sunny with a chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. Temperature falling into the mid 80s this afternoon. Light west Winds. Chance of rain 50 percent.

Tonight 19 Jul DeKalb

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the lower 70s. Light southwest Winds in the Evening, becoming light and variable. Chance of rain 20 percent.

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  • Temperature Real-Time

Stone Mountain Temperature Statistics

July Temperature

Atlanta, De Kalb-Peachtree Airport (8.7 miles)

  • Lowest 4 July, 2026

    69.7 °F

  • Average July

    81.7 °F

  • Highest 2 July, 2026

    98.7 °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

    63.3 °F

  • Average High 2021–2026

    73.9 °F
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