In August, Decatur typically sees daytime highs of 32.0°C and overnight lows around 19.5°C. Compared to the annual average high of 22.1°C, August runs +9.9°C.
August in Decatur averages a daytime high of 32.0°C and an overnight low of 19.5°C.
August runs +9.9°C compared to Decatur's annual average high of 22.1°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 32.0°C and cooler evenings around 19.5°C.