S
M
T
W
T
F
S
30
88°
71°
31
89°
71°
1
92°
74°
2
96°
74°
3
96°
76°
4
97°
75°
5
86°
70°
6
84°
69°
7
79°
68°
8
84°
70°
9
85°
72°
10
87°
71°
11
86°
69°
12
80°
70°
13
79°
69°
14
85°
72°
15
85°
71°
16
83°
72°
17
81°
71°
18
82°
68°
19
78°
66°
20
78°
69°
21
79°
69°
22
80°
68°
23
80°
69°
24
82°
69°
25
81°
68°
26
76°
68°
27
79°
69°
28
79°
68°
29
76°
67°
30
78°
67°
1
75°
66°
2
76°
66°
3
79°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Aurora
Aurora's September 2026 forecast shows daily high temperatures ranging from 75° to 97°, with overnight lows between 65° and 76°. The average high for September is 83° with an average low of 70°. 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 Aurora. See also: October | November | December.