S
M
T
W
T
F
S
30
63°
50°
31
66°
49°
1
66°
51°
2
65°
53°
3
65°
52°
4
64°
51°
5
64°
48°
6
63°
48°
7
63°
49°
8
62°
51°
9
63°
49°
10
62°
48°
11
60°
50°
12
61°
49°
13
60°
51°
14
61°
50°
15
61°
50°
16
63°
50°
17
63°
49°
18
Hist. Avg.
59°
46°
19
Hist. Avg.
59°
46°
20
Hist. Avg.
59°
46°
21
Hist. Avg.
59°
46°
22
Hist. Avg.
58°
46°
23
Hist. Avg.
58°
46°
24
Hist. Avg.
58°
45°
25
Hist. Avg.
58°
45°
26
Hist. Avg.
58°
45°
27
Hist. Avg.
57°
45°
28
Hist. Avg.
57°
45°
29
Hist. Avg.
57°
45°
30
Hist. Avg.
57°
44°
1
Hist. Avg.
56°
44°
2
Hist. Avg.
56°
44°
3
Hist. Avg.
56°
44°
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 60° to 66°, with overnight lows between 48° and 53°. The average high for September is 63° with an average low of 50°. 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.
