S
M
T
W
T
F
S
26
86°
66°
27
85°
65°
28
85°
65°
29
82°
64°
30
83°
64°
31
82°
63°
1
83°
64°
2
83°
64°
3
80°
60°
4
81°
61°
5
83°
63°
6
84°
64°
7
83°
63°
8
77°
59°
9
75°
57°
10
76°
59°
11
81°
63°
12
82°
63°
13
80°
62°
14
77°
62°
15
74°
59°
16
75°
59°
17
78°
61°
18
81°
62°
19
82°
62°
20
82°
63°
21
71°
52°
22
73°
52°
23
72°
51°
24
73°
52°
25
75°
50°
26
71°
51°
27
70°
50°
28
71°
51°
29
71°
49°
30
74°
58°
31
75°
57°
1
71°
52°
2
76°
59°
3
81°
56°
4
81°
53°
5
76°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in South Haven
South Haven's August 2026 forecast shows daily high temperatures ranging from 70° to 86°, with overnight lows between 48° and 66°. The average high for August is 78° with an average low of 59°. 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 South Haven. See also: September | October | November.
