Stone Mountain Weather Forecast
- 68
- 87
Slight Chance Thunderstorms
- 70
- 92
Mostly Sunny
- 67
- 91
Slight Chance Thunderstorms
- 63
- 84
Partly Sunny
- 60
- 79
Partly Sunny
- 61
- 80
Partly Sunny
Today 4 Sep DeKalb
Mostly sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the mid 80s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent.
Tonight 4 Sep DeKalb
Mostly clear. Lows in the upper 60s. Light south Winds.
Stone Mountain Temperature Statistics
September Temperature
Atlanta, De Kalb-Peachtree Airport (8.7 miles)
Lowest 2 September, 2025
60.1 °FAverage September
70.8 °FHighest 2 September, 2025
82 °F
Climate (2020–Present)
Atlanta, De Kalb-Peachtree Airport (8.7 miles)
Average Low 2020–2025
52.9 °FAverage 2020–2025
62.7 °FAverage High 2020–2025
73.1 °F