S
M
T
W
T
F
S
30
99°
80°
31
98°
79°
1
98°
79°
2
97°
78°
3
97°
79°
4
96°
78°
5
97°
77°
6
96°
78°
7
97°
78°
8
96°
77°
9
96°
78°
10
95°
77°
11
97°
77°
12
95°
76°
13
94°
76°
14
95°
75°
15
95°
76°
16
94°
75°
17
93°
74°
18
90°
74°
19
89°
73°
20
92°
74°
21
89°
70°
22
87°
64°
23
87°
65°
24
88°
66°
25
91°
71°
26
90°
70°
27
93°
70°
28
90°
69°
29
80°
71°
30
90°
70°
1
90°
68°
2
81°
69°
3
80°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Carrollton
Carrollton's September 2026 forecast shows daily high temperatures ranging from 80° to 99°, with overnight lows between 64° and 80°. The average high for September is 92° with an average low of 74°. 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 Carrollton. See also: October | November | December.