S
M
T
W
T
F
S
30
83°
55°
31
75°
57°
1
76°
62°
2
79°
60°
3
79°
63°
4
81°
56°
5
81°
53°
6
73°
53°
7
73°
54°
8
72°
52°
9
73°
59°
10
76°
52°
11
73°
50°
12
71°
50°
13
72°
51°
14
71°
55°
15
72°
49°
16
70°
49°
17
69°
47°
18
67°
46°
19
67°
48°
20
68°
48°
21
68°
49°
22
69°
50°
23
72°
54°
24
73°
51°
25
74°
55°
26
74°
51°
27
72°
45°
28
65°
52°
29
65°
53°
30
72°
47°
1
69°
51°
2
70°
50°
3
65°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rochester Hills
Rochester Hills's September 2026 forecast shows daily high temperatures ranging from 65° to 83°, with overnight lows between 44° and 63°. The average high for September is 72° with an average low of 52°. 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 Rochester Hills. See also: October | November | December.