S
M
T
W
T
F
S
30
78°
53°
31
79°
50°
1
80°
48°
2
77°
47°
3
75°
48°
4
77°
49°
5
78°
52°
6
81°
54°
7
83°
50°
8
77°
48°
9
76°
47°
10
76°
49°
11
77°
54°
12
81°
45°
13
77°
49°
14
75°
53°
15
83°
54°
16
82°
49°
17
83°
45°
18
72°
46°
19
74°
45°
20
79°
48°
21
79°
50°
22
80°
50°
23
79°
49°
24
78°
50°
25
70°
48°
26
73°
48°
27
77°
48°
28
76°
48°
29
75°
47°
30
77°
49°
1
77°
42°
2
66°
38°
3
66°
37°
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 66° to 83°, with overnight lows between 37° and 54°. The average high for September is 77° with an average low of 48°. 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.
