S
M
T
W
T
F
S
30
70°
58°
31
67°
55°
1
66°
51°
2
65°
52°
3
66°
51°
4
68°
52°
5
67°
54°
6
65°
54°
7
63°
51°
8
64°
51°
9
67°
54°
10
64°
54°
11
64°
53°
12
67°
53°
13
63°
52°
14
66°
53°
15
64°
53°
16
65°
52°
17
66°
52°
18
63°
50°
19
60°
47°
20
62°
52°
21
65°
53°
22
64°
52°
23
64°
51°
24
62°
51°
25
64°
50°
26
62°
49°
27
61°
48°
28
58°
50°
29
60°
50°
30
61°
51°
1
63°
51°
2
63°
50°
3
62°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rendsburg
Rendsburg's September 2026 forecast shows daily high temperatures ranging from 58° to 70°, with overnight lows between 47° and 58°. The average high for September is 64° with an average low of 52°. 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 Rendsburg. See also: October | November | December.
