S
M
T
W
T
F
S
27
82°
57°
28
82°
63°
29
82°
66°
30
84°
72°
1
84°
70°
2
84°
73°
3
81°
75°
4
81°
73°
5
75°
70°
6
77°
68°
7
81°
68°
8
82°
70°
9
78°
73°
10
77°
74°
11
83°
70°
12
82°
66°
13
86°
64°
14
80°
60°
15
76°
59°
16
79°
63°
17
81°
64°
18
75°
60°
19
73°
61°
20
76°
58°
21
77°
63°
22
78°
63°
23
71°
56°
24
70°
56°
25
69°
61°
26
70°
59°
27
75°
55°
28
74°
52°
29
68°
51°
30
69°
59°
31
71°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Hilton Head Island
Hilton Head Island's October 2026 forecast shows daily high temperatures ranging from 68° to 86°, with overnight lows between 51° and 74°. 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 Hilton Head Island. See also: November | December | January.