In August, Cincinnati typically sees daytime highs of 29.8°C and overnight lows around 17.1°C. Compared to the annual average high of 18.1°C, August runs +11.7°C.
August in Cincinnati averages a daytime high of 29.8°C and an overnight low of 17.1°C.
August runs +11.7°C compared to Cincinnati's annual average high of 18.1°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 29.8°C and cooler evenings around 17.1°C.