S
M
T
W
T
F
S
30
92°
64°
31
94°
66°
1
94°
68°
2
93°
67°
3
89°
68°
4
88°
67°
5
92°
67°
6
91°
66°
7
93°
67°
8
93°
67°
9
92°
66°
10
92°
67°
11
91°
67°
12
91°
66°
13
90°
63°
14
85°
62°
15
85°
59°
16
86°
59°
17
86°
64°
18
89°
64°
19
87°
63°
20
83°
62°
21
88°
63°
22
90°
64°
23
89°
57°
24
83°
56°
25
82°
55°
26
82°
56°
27
87°
60°
28
87°
60°
29
87°
60°
30
Hist. Avg.
82°
58°
1
Hist. Avg.
82°
57°
2
Hist. Avg.
82°
57°
3
Hist. Avg.
82°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cullen
Cullen's September 2026 forecast shows daily high temperatures ranging from 82° to 94°, with overnight lows between 55° and 68°. The average high for September is 89° 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 Cullen. See also: October | November | December.
