S
M
T
W
T
F
S
30
90°
71°
31
90°
70°
1
92°
71°
2
95°
72°
3
97°
74°
4
93°
73°
5
94°
69°
6
88°
71°
7
96°
69°
8
90°
68°
9
83°
53°
10
83°
64°
11
90°
61°
12
75°
57°
13
72°
61°
14
72°
50°
15
70°
54°
16
73°
53°
17
70°
50°
18
68°
51°
19
74°
52°
20
73°
53°
21
76°
51°
22
82°
57°
23
81°
58°
24
79°
58°
25
70°
57°
26
76°
56°
27
79°
57°
28
76°
56°
29
72°
53°
30
75°
45°
1
63°
44°
2
64°
40°
3
63°
40°
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 63° to 90°, with overnight lows between 40° and 68°. The average high for September is 75° with an average low of 54°. 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.