S
M
T
W
T
F
S
27
81°
63°
28
80°
63°
29
78°
63°
30
77°
68°
1
75°
56°
2
71°
51°
3
76°
46°
4
78°
51°
5
76°
45°
6
85°
47°
7
87°
55°
8
87°
55°
9
88°
56°
10
87°
55°
11
90°
66°
12
90°
71°
13
91°
60°
14
65°
59°
15
73°
51°
16
57°
37°
17
62°
33°
18
68°
37°
19
68°
43°
20
73°
43°
21
77°
52°
22
79°
48°
23
80°
50°
24
80°
50°
25
79°
50°
26
79°
53°
27
73°
57°
28
81°
56°
29
72°
57°
30
76°
59°
31
67°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in St. Marys
St. Marys's October 2026 forecast shows daily high temperatures ranging from 67° to 67°, with overnight lows between 56° and 56°. The average high for October is 67° with an average low of 56°. 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 St. Marys. See also: November | December | January.
