Decatur Weather Forecast
- 45
- 70
Sunny
- 48
- 75
Sunny
- 49
- 74
Mostly Sunny
- 53
- 72
Mostly Cloudy
- 54
- 68
Chance Rain Showers
- 53
- 65
Slight Chance Rain Showers
Today 22 Oct DeKalb
Sunny. Highs in the upper 60s. Northwest Winds 10 to 15 Mph.
Tonight 22 Oct DeKalb
Clear. Lows in the lower 40s. Northwest Winds 5 to 10 Mph.
Decatur Temperature Statistics
October Temperature
Atlanta, De Kalb-Peachtree Airport (6.8 miles)
Lowest 13 October, 2025
51.1 °FAverage October
68.7 °FHighest 8 October, 2025
87.1 °F
Climate (2020–Present)
Atlanta, De Kalb-Peachtree Airport (6.8 miles)
Average Low 2020–2025
53 °FAverage 2020–2025
62.9 °FAverage High 2020–2025
73.3 °F