S
M
T
W
T
F
S
27
83°
52°
28
83°
52°
29
85°
56°
30
N/A
1
87°
66°
2
86°
68°
3
83°
69°
4
72°
66°
5
77°
62°
6
76°
56°
7
72°
55°
8
77°
54°
9
77°
55°
10
73°
54°
11
70°
54°
12
71°
58°
13
72°
52°
14
71°
52°
15
68°
49°
16
69°
53°
17
70°
55°
18
72°
53°
19
73°
52°
20
68°
45°
21
63°
44°
22
63°
43°
23
64°
43°
24
68°
45°
25
70°
49°
26
72°
50°
27
73°
47°
28
65°
47°
29
62°
46°
30
68°
43°
31
67°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Marietta
Marietta's October 2026 forecast shows daily high temperatures ranging from 62° to 87°, with overnight lows between 43° and 69°. The average high for October is 72° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Marietta. See also: November | December | January.
