S
M
T
W
T
F
S
26
87°
72°
27
87°
73°
28
88°
73°
29
88°
72°
30
87°
73°
31
87°
72°
1
86°
72°
2
87°
73°
3
87°
72°
4
88°
72°
5
86°
71°
6
87°
72°
7
87°
73°
8
86°
73°
9
88°
72°
10
87°
74°
11
88°
73°
12
89°
72°
13
88°
73°
14
87°
72°
15
89°
73°
16
88°
72°
17
87°
72°
18
86°
71°
19
86°
72°
20
87°
73°
21
87°
72°
22
86°
69°
23
87°
73°
24
87°
73°
25
88°
72°
26
87°
73°
27
87°
73°
28
88°
72°
29
87°
71°
30
88°
72°
31
86°
73°
1
87°
72°
2
88°
72°
3
87°
73°
4
87°
74°
5
87°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Lahaina
Lahaina's August 2026 forecast shows daily high temperatures ranging from 86° to 89°, with overnight lows between 69° and 74°. The average high for August is 87° 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 Lahaina. See also: September | October | November.
