S
M
T
W
T
F
S
26
85°
72°
27
86°
71°
28
85°
70°
29
85°
70°
30
86°
71°
31
85°
70°
1
85°
70°
2
87°
72°
3
86°
71°
4
85°
70°
5
86°
71°
6
86°
71°
7
87°
72°
8
86°
71°
9
86°
71°
10
87°
72°
11
86°
71°
12
86°
72°
13
87°
71°
14
86°
71°
15
86°
70°
16
87°
73°
17
88°
73°
18
88°
72°
19
87°
73°
20
88°
73°
21
89°
72°
22
89°
73°
23
87°
72°
24
88°
71°
25
87°
70°
26
87°
72°
27
88°
72°
28
87°
71°
29
87°
72°
30
88°
72°
31
88°
70°
1
87°
71°
2
87°
68°
3
88°
70°
4
87°
71°
5
87°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Waipahu
Waipahu's August 2026 forecast shows daily high temperatures ranging from 85° to 89°, with overnight lows between 68° and 73°. The average high for August is 87° with an average low of 71°. 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 Waipahu. See also: September | October | November.
