In July, Marietta typically sees daytime highs of 31.3°C and overnight lows around 19.6°C. Compared to the annual average high of 22.0°C, July runs +9.3°C.
July in Marietta averages a daytime high of 31.3°C and an overnight low of 19.6°C.
July runs +9.3°C compared to Marietta's annual average high of 22.0°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 31.3°C and cooler evenings around 19.6°C.