S
M
T
W
T
F
S
26
82°
64°
27
83°
65°
28
84°
64°
29
83°
64°
30
83°
63°
31
82°
65°
1
83°
65°
2
84°
63°
3
82°
62°
4
76°
60°
5
80°
62°
6
81°
65°
7
82°
64°
8
78°
63°
9
78°
61°
10
75°
55°
11
74°
56°
12
75°
57°
13
74°
55°
14
74°
54°
15
73°
53°
16
73°
55°
17
74°
59°
18
73°
54°
19
73°
55°
20
74°
54°
21
72°
55°
22
73°
54°
23
72°
60°
24
72°
58°
25
71°
59°
26
75°
52°
27
70°
52°
28
70°
53°
29
71°
54°
30
74°
55°
31
76°
58°
1
76°
57°
2
75°
57°
3
75°
56°
4
74°
53°
5
69°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Bad Mergentheim
Bad Mergentheim's August 2026 forecast shows daily high temperatures ranging from 69° to 84°, with overnight lows between 52° and 65°. The average high for August is 76° with an average low of 58°. 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 Bad Mergentheim. See also: September | October | November.