S
M
T
W
T
F
S
27
86°
63°
28
86°
68°
29
84°
70°
30
86°
72°
1
86°
79°
2
88°
75°
3
84°
74°
4
83°
73°
5
79°
71°
6
77°
70°
7
81°
69°
8
82°
69°
9
80°
70°
10
82°
70°
11
81°
71°
12
83°
71°
13
80°
69°
14
80°
69°
15
81°
65°
16
80°
63°
17
75°
66°
18
74°
65°
19
76°
66°
20
74°
65°
21
78°
66°
22
79°
65°
23
76°
65°
24
77°
61°
25
76°
56°
26
71°
56°
27
75°
57°
28
69°
57°
29
70°
62°
30
73°
63°
31
75°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in St. Simons
St. Simons's October 2026 forecast shows daily high temperatures ranging from 69° to 84°, with overnight lows between 56° and 74°. The average high for October is 78° with an average low of 66°. 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. Simons. See also: November | December | January.