S
M
T
W
T
F
S
30
70°
54°
31
68°
54°
1
73°
47°
2
68°
46°
3
67°
51°
4
67°
46°
5
68°
45°
6
67°
46°
7
66°
47°
8
67°
48°
9
69°
53°
10
72°
46°
11
64°
44°
12
64°
44°
13
65°
49°
14
65°
50°
15
69°
50°
16
70°
49°
17
64°
52°
18
70°
52°
19
71°
51°
20
71°
50°
21
63°
49°
22
61°
45°
23
62°
43°
24
62°
48°
25
64°
51°
26
67°
50°
27
66°
48°
28
66°
48°
29
65°
42°
30
61°
39°
1
58°
38°
2
58°
38°
3
59°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Untermerzbach
Untermerzbach's September 2026 forecast shows daily high temperatures ranging from 58° to 73°, with overnight lows between 38° and 54°. The average high for September is 66° with an average low of 47°. 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 Untermerzbach. See also: October | November | December.
