S
M
T
W
T
F
S
26
100°
73°
27
101°
74°
28
101°
74°
29
100°
75°
30
101°
74°
31
104°
76°
1
95°
75°
2
100°
67°
3
102°
74°
4
100°
71°
5
98°
76°
6
99°
76°
7
100°
76°
8
100°
75°
9
99°
71°
10
99°
76°
11
99°
77°
12
101°
78°
13
99°
76°
14
98°
77°
15
98°
75°
16
99°
74°
17
98°
75°
18
101°
76°
19
100°
74°
20
100°
75°
21
101°
73°
22
101°
72°
23
100°
73°
24
94°
74°
25
96°
73°
26
96°
74°
27
95°
74°
28
96°
73°
29
96°
74°
30
95°
74°
31
96°
73°
1
95°
73°
2
95°
72°
3
94°
72°
4
94°
71°
5
93°
71°
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 93° to 101°, with overnight lows between 71° and 78°. The average high for August is 97° with an average low of 74°. 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.
