S
M
T
W
T
F
S
30
72°
65°
31
76°
56°
1
79°
64°
2
83°
62°
3
79°
60°
4
76°
55°
5
74°
55°
6
71°
48°
7
76°
47°
8
75°
55°
9
73°
61°
10
74°
53°
11
68°
44°
12
80°
42°
13
78°
63°
14
66°
46°
15
69°
44°
16
74°
57°
17
75°
54°
18
69°
44°
19
63°
38°
20
63°
44°
21
59°
40°
22
63°
39°
23
69°
39°
24
68°
35°
25
72°
37°
26
69°
42°
27
66°
42°
28
66°
48°
29
60°
44°
30
70°
44°
1
71°
62°
2
69°
50°
3
62°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Gananoque
Gananoque's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Gananoque. See also: October | November | December.
