S
M
T
W
T
F
S
30
81°
59°
31
84°
59°
1
85°
59°
2
86°
57°
3
90°
57°
4
91°
58°
5
90°
60°
6
88°
59°
7
86°
62°
8
82°
57°
9
82°
55°
10
87°
60°
11
88°
56°
12
85°
59°
13
82°
56°
14
75°
52°
15
80°
54°
16
80°
57°
17
77°
55°
18
75°
53°
19
76°
51°
20
83°
58°
21
79°
53°
22
78°
52°
23
77°
51°
24
74°
51°
25
69°
49°
26
70°
47°
27
74°
50°
28
73°
47°
29
71°
40°
30
61°
36°
1
61°
36°
2
62°
35°
3
62°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Centennial
Centennial's September 2026 forecast shows daily high temperatures ranging from 61° to 88°, with overnight lows between 35° and 62°. The average high for September is 76° with an average low of 51°. 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 Centennial. See also: October | November | December.
