S
M
T
W
T
F
S
30
79°
58°
31
79°
49°
1
78°
48°
2
69°
47°
3
66°
47°
4
65°
48°
5
66°
48°
6
69°
57°
7
74°
57°
8
77°
47°
9
73°
48°
10
69°
46°
11
67°
56°
12
70°
46°
13
71°
44°
14
63°
45°
15
65°
54°
16
69°
52°
17
70°
44°
18
64°
49°
19
67°
44°
20
70°
42°
21
62°
46°
22
61°
54°
23
72°
50°
24
71°
47°
25
69°
52°
26
65°
51°
27
68°
49°
28
69°
50°
29
67°
51°
30
68°
48°
1
70°
39°
2
67°
37°
3
55°
39°
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 55° to 79°, with overnight lows between 37° and 58°. The average high for September is 69° with an average low of 48°. 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.
