S
M
T
W
T
F
S
30
54°
43°
31
58°
39°
1
53°
37°
2
53°
34°
3
51°
33°
4
50°
33°
5
50°
35°
6
51°
33°
7
50°
31°
8
49°
32°
9
47°
30°
10
47°
30°
11
46°
29°
12
46°
30°
13
47°
35°
14
46°
39°
15
49°
38°
16
48°
24°
17
51°
37°
18
45°
35°
19
49°
37°
20
50°
36°
21
48°
33°
22
48°
36°
23
44°
33°
24
45°
32°
25
42°
33°
26
44°
32°
27
44°
32°
28
43°
33°
29
41°
32°
30
40°
30°
1
38°
31°
2
38°
20°
3
Hist. Avg.
39°
25°
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 38° to 58°, with overnight lows between 20° and 43°. The average high for September is 47° with an average low of 33°. 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.
