S
M
T
W
T
F
S
30
102°
73°
31
103°
75°
1
102°
76°
2
101°
75°
3
100°
74°
4
100°
73°
5
102°
73°
6
99°
72°
7
102°
74°
8
103°
73°
9
102°
73°
10
96°
70°
11
87°
64°
12
88°
66°
13
91°
67°
14
89°
67°
15
91°
67°
16
91°
66°
17
90°
67°
18
91°
67°
19
90°
66°
20
90°
66°
21
89°
65°
22
88°
65°
23
88°
64°
24
87°
65°
25
88°
64°
26
87°
63°
27
88°
64°
28
88°
63°
29
87°
62°
30
87°
63°
1
86°
63°
2
86°
62°
3
85°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Caddo
Caddo's September 2026 forecast shows daily high temperatures ranging from 85° to 103°, with overnight lows between 62° and 76°. The average high for September is 92° with an average low of 68°. 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 Caddo. See also: October | November | December.