S
M
T
W
T
F
S
30
69°
51°
31
72°
48°
1
68°
48°
2
68°
52°
3
67°
48°
4
67°
47°
5
68°
47°
6
66°
46°
7
66°
44°
8
67°
45°
9
66°
46°
10
66°
51°
11
72°
47°
12
64°
48°
13
63°
49°
14
64°
50°
15
70°
50°
16
68°
47°
17
62°
48°
18
68°
51°
19
69°
51°
20
69°
50°
21
68°
51°
22
67°
50°
23
68°
50°
24
69°
48°
25
67°
46°
26
60°
47°
27
61°
47°
28
60°
46°
29
65°
47°
30
67°
47°
1
Hist. Avg.
61°
46°
2
Hist. Avg.
61°
46°
3
Hist. Avg.
61°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Altendorf
Altendorf's September 2026 forecast shows daily high temperatures ranging from 60° to 72°, with overnight lows between 44° and 52°. The average high for September is 67° with an average low of 48°. 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.
