S
M
T
W
T
F
S
30
93°
66°
31
95°
72°
1
99°
73°
2
100°
72°
3
101°
73°
4
100°
73°
5
96°
70°
6
94°
68°
7
93°
70°
8
94°
70°
9
95°
72°
10
94°
68°
11
88°
65°
12
87°
65°
13
86°
64°
14
85°
62°
15
93°
69°
16
79°
64°
17
81°
63°
18
79°
63°
19
76°
64°
20
78°
63°
21
83°
63°
22
84°
62°
23
82°
60°
24
79°
61°
25
83°
62°
26
80°
56°
27
72°
52°
28
71°
49°
29
70°
49°
30
72°
53°
1
71°
52°
2
71°
57°
3
70°
56°
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 70° to 101°, with overnight lows between 49° and 73°. The average high for September is 84° with an average low of 63°. 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.
