S
M
T
W
T
F
S
30
57°
44°
31
62°
45°
1
62°
42°
2
58°
36°
3
57°
38°
4
60°
40°
5
55°
37°
6
58°
37°
7
58°
35°
8
59°
37°
9
60°
31°
10
55°
32°
11
47°
31°
12
47°
31°
13
48°
32°
14
47°
35°
15
46°
32°
16
46°
30°
17
45°
30°
18
44°
31°
19
44°
25°
20
45°
28°
21
43°
33°
22
43°
27°
23
44°
27°
24
41°
23°
25
42°
22°
26
41°
26°
27
40°
25°
28
40°
25°
29
39°
24°
30
37°
23°
1
38°
25°
2
34°
24°
3
39°
24°
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 34° to 62°, with overnight lows between 22° and 45°. The average high for September is 48° with an average low of 31°. 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.
