Decatur Weather Forecast
- 73
- 93
Chance Thunderstorms
- 73
- 90
Chance Thunderstorms
- 73
- 88
Chance Thunderstorms
- 73
- 91
Chance Thunderstorms
- 74
- 91
Chance Thunderstorms
- 75
- 94
Chance Thunderstorms
Today 22 Jul DeKalb
Mostly sunny. A chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. Temperature falling into the upper 80s in the afternoon. Light north Winds. Chance of rain 50 percent.
Tonight 22 Jul DeKalb
Mostly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the lower 70s. East Winds 5 to 10 Mph. Chance of rain 50 percent.
Decatur Temperature Statistics
July Temperature
Atlanta, De Kalb-Peachtree Airport (6.8 miles)
Lowest 3 July, 2025
68.6 °FAverage July
82.7 °FHighest 15 July, 2025
96.7 °F
Climate (2020–Present)
Atlanta, De Kalb-Peachtree Airport (6.8 miles)
Average Low 2020–2025
52.9 °FAverage 2020–2025
62.7 °FAverage High 2020–2025
73.1 °F