S
M
T
W
T
F
S
26
83°
73°
27
84°
69°
28
84°
75°
29
87°
73°
30
87°
72°
31
84°
72°
1
84°
72°
2
81°
71°
3
84°
71°
4
86°
74°
5
86°
75°
6
85°
72°
7
85°
71°
8
83°
71°
9
85°
74°
10
84°
75°
11
85°
73°
12
85°
71°
13
84°
74°
14
81°
73°
15
80°
73°
16
81°
76°
17
80°
75°
18
84°
71°
19
83°
71°
20
85°
72°
21
87°
75°
22
86°
74°
23
83°
72°
24
74°
63°
25
74°
61°
26
74°
60°
27
75°
60°
28
74°
60°
29
76°
58°
30
75°
57°
31
77°
59°
1
76°
57°
2
77°
56°
3
77°
57°
4
78°
58°
5
77°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Hawaii National Park
Hawaii National Park's August 2026 forecast shows daily high temperatures ranging from 74° to 78°, with overnight lows between 56° and 63°. The average high for August is 76° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Hawaii National Park. See also: September | October | November.
