S
M
T
W
T
F
S
26
82°
71°
27
84°
70°
28
86°
74°
29
86°
72°
30
89°
69°
31
83°
72°
1
82°
72°
2
90°
70°
3
89°
71°
4
87°
71°
5
88°
72°
6
89°
71°
7
88°
72°
8
87°
71°
9
88°
72°
10
87°
71°
11
88°
71°
12
87°
71°
13
88°
72°
14
88°
72°
15
87°
71°
16
85°
73°
17
83°
73°
18
84°
72°
19
83°
73°
20
84°
73°
21
84°
72°
22
85°
73°
23
84°
73°
24
84°
72°
25
85°
73°
26
84°
73°
27
84°
72°
28
85°
73°
29
85°
72°
30
84°
73°
31
84°
73°
1
85°
72°
2
84°
72°
3
84°
71°
4
83°
72°
5
84°
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 83° to 90°, with overnight lows between 70° and 73°. The average high for August is 86° with an average low of 72°. 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.
