S
M
T
W
T
F
S
30
75°
61°
31
73°
55°
1
72°
55°
2
72°
52°
3
70°
52°
4
81°
59°
5
68°
52°
6
70°
48°
7
79°
55°
8
N/A
9
68°
51°
10
65°
47°
11
70°
51°
12
71°
53°
13
74°
55°
14
70°
52°
15
77°
56°
16
70°
50°
17
65°
49°
18
70°
52°
19
69°
50°
20
67°
51°
21
66°
51°
22
66°
51°
23
69°
50°
24
70°
51°
25
70°
48°
26
69°
45°
27
63°
43°
28
61°
42°
29
62°
42°
30
63°
49°
1
61°
48°
2
63°
44°
3
64°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Jena
Jena's September 2026 forecast shows daily high temperatures ranging from 61° to 77°, with overnight lows between 42° and 56°. The average high for September is 67° with an average low of 49°. 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 Jena. See also: October | November | December.
