S
M
T
W
T
F
S
30
66°
49°
31
61°
47°
1
62°
45°
2
60°
44°
3
60°
45°
4
62°
43°
5
59°
44°
6
59°
42°
7
60°
42°
8
58°
47°
9
58°
43°
10
59°
45°
11
60°
45°
12
60°
46°
13
59°
45°
14
57°
43°
15
56°
48°
16
61°
44°
17
55°
45°
18
60°
48°
19
62°
48°
20
62°
47°
21
61°
48°
22
62°
47°
23
62°
47°
24
61°
45°
25
57°
47°
26
59°
47°
27
60°
39°
28
51°
43°
29
52°
45°
30
56°
43°
1
57°
44°
2
60°
45°
3
60°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Breitenbrunn
Breitenbrunn's September 2026 forecast shows daily high temperatures ranging from 51° to 66°, with overnight lows between 39° and 49°. The average high for September is 59° with an average low of 45°. 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 Breitenbrunn. See also: October | November | December.