S
M
T
W
T
F
S
30
72°
65°
31
74°
60°
1
78°
64°
2
84°
67°
3
79°
65°
4
76°
60°
5
75°
59°
6
72°
54°
7
76°
53°
8
74°
56°
9
73°
63°
10
75°
58°
11
69°
48°
12
82°
49°
13
78°
64°
14
67°
50°
15
68°
48°
16
76°
61°
17
76°
60°
18
69°
48°
19
65°
41°
20
62°
49°
21
58°
44°
22
64°
38°
23
70°
39°
24
69°
42°
25
73°
39°
26
71°
46°
27
66°
49°
28
65°
53°
29
58°
52°
30
73°
50°
1
71°
61°
2
69°
54°
3
62°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Alexandria Bay
Alexandria Bay'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 Alexandria Bay. See also: October | November | December.
