S
M
T
W
T
F
S
27
61°
50°
28
60°
52°
29
63°
55°
30
69°
50°
1
76°
59°
2
68°
45°
3
62°
38°
4
63°
37°
5
57°
34°
6
57°
29°
7
67°
34°
8
64°
37°
9
68°
38°
10
67°
53°
11
60°
55°
12
68°
58°
13
71°
50°
14
59°
41°
15
59°
44°
16
63°
41°
17
53°
36°
18
53°
36°
19
54°
38°
20
53°
35°
21
56°
36°
22
55°
34°
23
50°
31°
24
49°
29°
25
53°
34°
26
58°
37°
27
56°
28°
28
47°
28°
29
46°
27°
30
47°
29°
31
53°
32°
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 46° to 71°, with overnight lows between 27° and 58°. The average high for October is 56° with an average low of 38°. 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.
