S
M
T
W
T
F
S
27
83°
69°
28
85°
67°
29
85°
69°
30
84°
74°
1
82°
73°
2
85°
72°
3
82°
70°
4
84°
71°
5
84°
71°
6
82°
70°
7
85°
70°
8
88°
72°
9
87°
74°
10
84°
72°
11
83°
69°
12
84°
68°
13
83°
71°
14
75°
61°
15
74°
58°
16
73°
60°
17
70°
59°
18
73°
59°
19
72°
56°
20
73°
55°
21
72°
54°
22
74°
56°
23
73°
56°
24
73°
57°
25
74°
56°
26
75°
56°
27
72°
57°
28
69°
56°
29
70°
57°
30
68°
56°
31
68°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Hawaii National Park
Hawaii National Park's October 2026 forecast shows daily high temperatures ranging from 68° to 75°, with overnight lows between 54° and 61°. The average high for October is 72° with an average low of 57°. 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 Hawaii National Park. See also: November | December | January.