S
M
T
W
T
F
S
30
85°
67°
31
87°
67°
1
90°
68°
2
90°
66°
3
88°
66°
4
86°
62°
5
83°
61°
6
83°
61°
7
82°
60°
8
84°
61°
9
82°
63°
10
81°
55°
11
75°
56°
12
78°
57°
13
79°
57°
14
79°
58°
15
80°
57°
16
77°
56°
17
78°
58°
18
78°
57°
19
70°
57°
20
77°
56°
21
77°
57°
22
76°
57°
23
77°
55°
24
75°
53°
25
68°
52°
26
69°
51°
27
74°
53°
28
75°
53°
29
75°
52°
30
74°
53°
1
75°
54°
2
74°
53°
3
71°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Auburn
Auburn's September 2026 forecast shows daily high temperatures ranging from 68° to 90°, with overnight lows between 51° and 68°. The average high for September is 79° with an average low of 58°. 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 Auburn. See also: October | November | December.