S
M
T
W
T
F
S
30
80°
64°
31
83°
63°
1
82°
62°
2
76°
59°
3
74°
62°
4
74°
62°
5
80°
61°
6
82°
62°
7
82°
63°
8
83°
63°
9
82°
61°
10
78°
60°
11
80°
61°
12
82°
60°
13
81°
61°
14
75°
49°
15
70°
51°
16
72°
54°
17
74°
55°
18
69°
49°
19
70°
50°
20
73°
53°
21
76°
56°
22
76°
54°
23
77°
46°
24
69°
48°
25
71°
51°
26
75°
54°
27
73°
51°
28
75°
44°
29
66°
43°
30
65°
45°
1
64°
52°
2
71°
51°
3
73°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Dearborn
Dearborn's September 2026 forecast shows daily high temperatures ranging from 64° to 83°, with overnight lows between 43° and 64°. The average high for September is 75° with an average low of 55°. 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 Dearborn. See also: October | November | December.
