S
M
T
W
T
F
S
27
86°
55°
28
N/A
29
84°
65°
30
87°
72°
1
87°
71°
2
86°
74°
3
81°
74°
4
82°
74°
5
74°
69°
6
75°
67°
7
81°
67°
8
78°
68°
9
77°
73°
10
80°
75°
11
82°
68°
12
84°
68°
13
85°
67°
14
87°
67°
15
82°
66°
16
83°
65°
17
80°
63°
18
75°
58°
19
74°
59°
20
77°
56°
21
71°
59°
22
73°
58°
23
71°
57°
24
71°
57°
25
70°
62°
26
71°
60°
27
77°
56°
28
75°
53°
29
69°
52°
30
70°
60°
31
72°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in St. Helena Island
St. Helena Island's October 2026 forecast shows daily high temperatures ranging from 69° to 87°, with overnight lows between 52° and 75°. The average high for October is 76° with an average low of 62°. 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. Helena Island. See also: November | December | January.
