S
M
T
W
T
F
S
26
65°
56°
27
66°
53°
28
67°
51°
29
67°
51°
30
68°
52°
31
67°
57°
1
69°
58°
2
71°
59°
3
72°
53°
4
67°
58°
5
70°
56°
6
69°
57°
7
69°
57°
8
68°
54°
9
66°
53°
10
64°
52°
11
65°
54°
12
65°
53°
13
66°
54°
14
65°
51°
15
64°
49°
16
64°
52°
17
65°
54°
18
67°
58°
19
66°
56°
20
64°
55°
21
63°
55°
22
63°
56°
23
64°
53°
24
63°
54°
25
62°
56°
26
66°
53°
27
67°
52°
28
67°
49°
29
62°
51°
30
61°
56°
31
67°
56°
1
68°
55°
2
68°
55°
3
69°
47°
4
63°
47°
5
62°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sundern
Sundern's August 2026 forecast shows daily high temperatures ranging from 61° to 72°, with overnight lows between 47° and 59°. The average high for August is 66° with an average low of 54°. 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 Sundern. See also: September | October | November.