S
M
T
W
T
F
S
30
73°
59°
31
73°
59°
1
72°
54°
2
70°
52°
3
70°
55°
4
77°
61°
5
68°
54°
6
72°
46°
7
82°
57°
8
81°
59°
9
72°
55°
10
N/A
11
68°
54°
12
69°
57°
13
63°
57°
14
68°
55°
15
73°
55°
16
64°
52°
17
63°
52°
18
62°
50°
19
63°
51°
20
67°
50°
21
66°
49°
22
64°
47°
23
67°
50°
24
66°
51°
25
66°
50°
26
59°
48°
27
60°
50°
28
61°
44°
29
57°
43°
30
57°
43°
1
56°
44°
2
57°
43°
3
60°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Holzminden
Holzminden's September 2026 forecast shows daily high temperatures ranging from 56° to 73°, with overnight lows between 43° and 57°. The average high for September is 63° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Holzminden. See also: October | November | December.