S
M
T
W
T
F
S
26
99°
75°
27
99°
75°
28
88°
75°
29
88°
68°
30
88°
64°
31
82°
72°
1
73°
66°
2
84°
66°
3
88°
63°
4
90°
64°
5
88°
68°
6
77°
68°
7
91°
67°
8
90°
68°
9
93°
71°
10
92°
75°
11
98°
75°
12
95°
70°
13
97°
82°
14
95°
77°
15
95°
77°
16
88°
71°
17
85°
63°
18
89°
70°
19
85°
69°
20
83°
64°
21
82°
60°
22
84°
59°
23
85°
60°
24
86°
61°
25
85°
64°
26
82°
62°
27
83°
61°
28
88°
60°
29
85°
59°
30
88°
62°
31
87°
64°
1
86°
63°
2
83°
62°
3
78°
56°
4
78°
54°
5
80°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Hermann
Hermann's August 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 54° and 71°. The average high for August is 84° with an average low of 62°. 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 Hermann. See also: September | October | November.