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