S
M
T
W
T
F
S
26
88°
75°
27
88°
75°
28
90°
76°
29
89°
78°
30
90°
76°
31
89°
80°
1
89°
73°
2
88°
73°
3
88°
73°
4
87°
73°
5
88°
75°
6
89°
76°
7
88°
75°
8
89°
76°
9
88°
75°
10
88°
75°
11
89°
76°
12
88°
75°
13
89°
76°
14
88°
75°
15
85°
77°
16
86°
76°
17
85°
77°
18
85°
77°
19
86°
76°
20
85°
77°
21
85°
77°
22
86°
76°
23
85°
77°
24
85°
77°
25
86°
76°
26
86°
77°
27
87°
77°
28
85°
76°
29
87°
76°
30
86°
77°
31
86°
77°
1
87°
76°
2
86°
77°
3
85°
77°
4
85°
76°
5
86°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in 'Aiea
'Aiea's August 2026 forecast shows daily high temperatures ranging from 85° to 89°, with overnight lows between 73° and 77°. The average high for August is 87° with an average low of 76°. 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 'Aiea. See also: September | October | November.