S
M
T
W
T
F
S
30
70°
62°
31
70°
63°
1
79°
66°
2
84°
68°
3
79°
62°
4
76°
59°
5
73°
56°
6
74°
56°
7
75°
53°
8
70°
54°
9
69°
52°
10
73°
54°
11
70°
55°
12
69°
52°
13
67°
50°
14
69°
51°
15
70°
56°
16
74°
56°
17
73°
51°
18
66°
46°
19
66°
51°
20
75°
55°
21
76°
56°
22
76°
56°
23
75°
54°
24
74°
53°
25
73°
52°
26
73°
53°
27
74°
54°
28
74°
52°
29
72°
49°
30
65°
46°
1
62°
48°
2
71°
52°
3
72°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in East Rochester
East Rochester's September 2026 forecast shows daily high temperatures ranging from 62° to 84°, with overnight lows between 46° and 68°. The average high for September is 72° with an average low of 54°. 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 East Rochester. See also: October | November | December.
