S
M
T
W
T
F
S
30
90°
69°
31
89°
68°
1
88°
67°
2
88°
66°
3
87°
68°
4
87°
63°
5
86°
67°
6
88°
65°
7
87°
66°
8
86°
67°
9
86°
67°
10
85°
66°
11
85°
66°
12
81°
65°
13
80°
65°
14
80°
64°
15
81°
65°
16
81°
64°
17
80°
63°
18
81°
61°
19
79°
60°
20
78°
56°
21
77°
56°
22
77°
57°
23
79°
60°
24
80°
61°
25
81°
62°
26
80°
61°
27
81°
60°
28
76°
56°
29
77°
54°
30
75°
55°
1
Hist. Avg.
78°
49°
2
Hist. Avg.
78°
49°
3
Hist. Avg.
77°
49°
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 90°, with overnight lows between 54° and 69°. The average high for September is 82° 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 Aurora. See also: October | November | December.