In August, Decatur typically sees daytime highs of 29.5°C and overnight lows around 16.7°C. Compared to the annual average high of 17.2°C, August runs +12.3°C.
August in Decatur averages a daytime high of 29.5°C and an overnight low of 16.7°C.
August runs +12.3°C compared to Decatur's annual average high of 17.2°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 29.5°C and cooler evenings around 16.7°C.