S
M
T
W
T
F
S
30
82°
68°
31
85°
63°
1
82°
61°
2
80°
62°
3
86°
65°
4
89°
70°
5
90°
67°
6
83°
63°
7
75°
62°
8
75°
60°
9
72°
56°
10
73°
58°
11
71°
51°
12
73°
54°
13
69°
52°
14
70°
50°
15
75°
55°
16
72°
55°
17
73°
57°
18
72°
55°
19
68°
54°
20
73°
55°
21
74°
54°
22
72°
55°
23
72°
55°
24
74°
56°
25
73°
55°
26
72°
54°
27
73°
53°
28
72°
53°
29
71°
52°
30
71°
53°
1
72°
53°
2
71°
51°
3
69°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Evansville
Evansville's September 2026 forecast shows daily high temperatures ranging from 68° to 90°, with overnight lows between 50° and 70°. The average high for September is 74° 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 Evansville. See also: October | November | December.
