S
M
T
W
T
F
S
27
77°
56°
28
78°
53°
29
70°
46°
30
68°
46°
1
69°
49°
2
76°
49°
3
77°
53°
4
77°
53°
5
76°
54°
6
76°
54°
7
75°
53°
8
77°
46°
9
73°
50°
10
72°
44°
11
64°
50°
12
65°
51°
13
65°
52°
14
72°
51°
15
72°
51°
16
73°
47°
17
72°
39°
18
67°
37°
19
60°
37°
20
61°
36°
21
58°
46°
22
60°
45°
23
68°
39°
24
63°
35°
25
57°
34°
26
55°
41°
27
58°
43°
28
63°
34°
29
64°
32°
30
57°
33°
31
66°
35°
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 55° to 78°, with overnight lows between 32° and 56°. The average high for October is 68° with an average low of 45°. 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.
