S
M
T
W
T
F
S
26
75°
57°
27
72°
55°
28
84°
63°
29
93°
69°
30
96°
71°
31
87°
69°
1
86°
68°
2
85°
67°
3
82°
64°
4
83°
63°
5
85°
62°
6
80°
61°
7
77°
61°
8
78°
61°
9
77°
60°
10
76°
60°
11
75°
57°
12
70°
54°
13
73°
55°
14
75°
57°
15
76°
59°
16
76°
60°
17
77°
60°
18
77°
61°
19
78°
61°
20
77°
60°
21
76°
60°
22
75°
59°
23
76°
60°
24
74°
59°
25
73°
58°
26
72°
57°
27
73°
58°
28
72°
57°
29
67°
57°
30
71°
54°
31
72°
57°
1
72°
57°
2
71°
56°
3
69°
53°
4
64°
53°
5
65°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Siegen
Siegen's August 2026 forecast shows daily high temperatures ranging from 64° to 96°, with overnight lows between 50° and 71°. The average high for August is 76° with an average low of 60°. 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 Siegen. See also: September | October | November.
