S
M
T
W
T
F
S
30
87°
63°
31
88°
68°
1
92°
72°
2
91°
70°
3
93°
70°
4
90°
68°
5
82°
66°
6
79°
61°
7
82°
57°
8
86°
57°
9
90°
68°
10
82°
64°
11
82°
63°
12
79°
64°
13
88°
61°
14
73°
52°
15
90°
52°
16
90°
70°
17
86°
68°
18
79°
64°
19
82°
61°
20
82°
66°
21
64°
54°
22
63°
55°
23
64°
55°
24
68°
46°
25
72°
43°
26
73°
46°
27
73°
50°
28
N/A
29
75°
52°
30
82°
60°
1
83°
63°
2
72°
52°
3
66°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Jeffersonville
Jeffersonville's September 2026 forecast shows daily high temperatures ranging from 66° to 83°, with overnight lows between 51° and 63°. The average high for September is 76° with an average low of 56°. 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 Jeffersonville. See also: October | November | December.