S
M
T
W
T
F
S
30
70°
62°
31
70°
63°
1
81°
68°
2
82°
67°
3
79°
62°
4
75°
61°
5
71°
56°
6
73°
57°
7
75°
58°
8
70°
57°
9
77°
62°
10
76°
59°
11
70°
54°
12
72°
57°
13
68°
58°
14
68°
54°
15
72°
53°
16
75°
58°
17
74°
54°
18
67°
52°
19
72°
54°
20
75°
58°
21
75°
58°
22
74°
57°
23
73°
56°
24
68°
55°
25
73°
56°
26
72°
55°
27
72°
52°
28
62°
52°
29
63°
51°
30
62°
48°
1
60°
47°
2
61°
52°
3
65°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Irondequoit
Irondequoit's September 2026 forecast shows daily high temperatures ranging from 60° to 82°, with overnight lows between 47° and 67°. The average high for September is 71° with an average low of 56°. 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 Irondequoit. See also: October | November | December.
