S
M
T
W
T
F
S
27
66°
48°
28
65°
47°
29
71°
44°
30
69°
43°
1
64°
46°
2
68°
52°
3
70°
41°
4
71°
40°
5
60°
41°
6
61°
45°
7
60°
48°
8
61°
48°
9
61°
47°
10
63°
48°
11
69°
49°
12
67°
42°
13
67°
38°
14
58°
39°
15
57°
38°
16
56°
38°
17
55°
37°
18
56°
37°
19
57°
38°
20
60°
45°
21
60°
45°
22
62°
46°
23
63°
44°
24
66°
38°
25
64°
37°
26
56°
36°
27
54°
36°
28
53°
32°
29
52°
34°
30
52°
34°
31
Hist. Avg.
56°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Big Island
Big Island's October 2026 forecast shows daily high temperatures ranging from 52° to 71°, with overnight lows between 32° and 52°. The average high for October is 62° with an average low of 42°. 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 Big Island. See also: November | December | January.
