S
M
T
W
T
F
S
30
75°
59°
31
75°
59°
1
75°
55°
2
75°
52°
3
73°
54°
4
86°
64°
5
73°
54°
6
N/A
7
78°
50°
8
85°
58°
9
66°
44°
10
66°
42°
11
68°
45°
12
69°
46°
13
70°
50°
14
72°
49°
15
75°
51°
16
68°
50°
17
65°
48°
18
64°
49°
19
61°
50°
20
66°
49°
21
65°
50°
22
64°
49°
23
67°
49°
24
68°
48°
25
68°
47°
26
67°
43°
27
62°
41°
28
61°
40°
29
61°
40°
30
63°
48°
1
60°
45°
2
60°
42°
3
63°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Altendorf
Altendorf's September 2026 forecast shows daily high temperatures ranging from 60° to 85°, with overnight lows between 40° and 58°. The average high for September is 67° 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 Altendorf. See also: October | November | December.
