S
M
T
W
T
F
S
28
91°
74°
29
94°
72°
30
95°
71°
1
94°
70°
2
93°
71°
3
94°
70°
4
93°
74°
5
95°
74°
6
87°
70°
7
87°
67°
8
88°
67°
9
88°
71°
10
90°
73°
11
93°
74°
12
95°
74°
13
95°
73°
14
96°
74°
15
96°
74°
16
95°
75°
17
97°
74°
18
97°
73°
19
96°
74°
20
95°
74°
21
96°
73°
22
96°
74°
23
95°
74°
24
95°
73°
25
96°
75°
26
98°
75°
27
98°
74°
28
97°
75°
29
97°
75°
30
98°
74°
31
98°
75°
1
97°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Marietta
Marietta's July 2026 forecast shows daily high temperatures ranging from 87° to 98°, with overnight lows between 67° and 75°. The average high for July is 94° with an average low of 73°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Marietta. See also: August | September | October.
