S
M
T
W
T
F
S
30
93°
72°
31
96°
73°
1
97°
73°
2
99°
74°
3
100°
76°
4
102°
76°
5
102°
76°
6
97°
74°
7
97°
76°
8
93°
76°
9
96°
73°
10
98°
72°
11
90°
74°
12
93°
74°
13
94°
71°
14
98°
71°
15
97°
72°
16
94°
71°
17
96°
69°
18
97°
72°
19
94°
73°
20
93°
73°
21
92°
72°
22
88°
73°
23
89°
67°
24
88°
66°
25
85°
66°
26
88°
65°
27
87°
65°
28
87°
66°
29
83°
57°
30
86°
67°
1
85°
66°
2
77°
66°
3
80°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Birmingham
Birmingham's September 2026 forecast shows daily high temperatures ranging from 77° to 97°, with overnight lows between 57° and 73°. The average high for September is 88° with an average low of 68°. 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 Birmingham. See also: October | November | December.