S
M
T
W
T
F
S
26
81°
64°
27
81°
62°
28
78°
67°
29
69°
65°
30
81°
64°
31
81°
60°
1
85°
59°
2
78°
69°
3
79°
65°
4
78°
57°
5
87°
53°
6
82°
68°
7
80°
66°
8
81°
65°
9
77°
62°
10
80°
61°
11
78°
60°
12
78°
55°
13
76°
57°
14
76°
56°
15
77°
56°
16
74°
64°
17
76°
58°
18
77°
58°
19
78°
62°
20
74°
60°
21
73°
57°
22
76°
57°
23
74°
56°
24
73°
55°
25
72°
56°
26
73°
55°
27
76°
59°
28
69°
51°
29
70°
57°
30
74°
58°
31
77°
58°
1
78°
59°
2
78°
58°
3
77°
57°
4
73°
57°
5
71°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Henderson Harbor
Henderson Harbor's August 2026 forecast shows daily high temperatures ranging from 69° to 78°, with overnight lows between 51° and 64°. The average high for August is 75° with an average low of 57°. 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 Henderson Harbor. See also: September | October | November.
