S
M
T
W
T
F
S
30
76°
68°
31
86°
69°
1
90°
72°
2
96°
74°
3
88°
69°
4
77°
69°
5
79°
61°
6
79°
59°
7
79°
58°
8
82°
60°
9
78°
69°
10
82°
62°
11
76°
56°
12
83°
62°
13
81°
56°
14
71°
50°
15
79°
61°
16
74°
65°
17
70°
62°
18
75°
56°
19
65°
58°
20
63°
58°
21
61°
51°
22
64°
50°
23
65°
54°
24
69°
52°
25
68°
47°
26
73°
49°
27
76°
50°
28
76°
52°
29
76°
53°
30
71°
57°
1
80°
56°
2
67°
48°
3
68°
47°
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 67° to 80°, with overnight lows between 47° and 56°. The average high for September is 72° with an average low of 50°. 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.
