S
M
T
W
T
F
S
30
91°
70°
31
92°
72°
1
90°
71°
2
90°
66°
3
89°
65°
4
87°
65°
5
88°
66°
6
89°
69°
7
93°
72°
8
95°
72°
9
95°
71°
10
94°
70°
11
92°
70°
12
89°
71°
13
92°
65°
14
93°
63°
15
87°
64°
16
88°
63°
17
87°
62°
18
88°
63°
19
89°
62°
20
90°
65°
21
91°
67°
22
85°
67°
23
85°
66°
24
86°
67°
25
84°
66°
26
86°
66°
27
88°
64°
28
88°
65°
29
89°
65°
30
89°
64°
1
88°
63°
2
89°
59°
3
90°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Corsicana
Corsicana's September 2026 forecast shows daily high temperatures ranging from 84° to 95°, with overnight lows between 57° and 72°. The average high for September is 89° with an average low of 66°. 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 Corsicana. See also: October | November | December.
