The highest day temperature in July 2026 was 106°F. The lowest night temperature was 70°F. The average values for day and night temperatures during July were 94.1°F и 76.1°F respectivly.

Most of the days in July are cloudy but you can also expect sunny or gloomy days.

Precipitation total in July for Marietta is 1.4 in.

The average wind speed in July is 4.9 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Marietta in July is 8.1 hours.