S
M
T
W
T
F
S
30
76°
56°
31
77°
56°
1
74°
55°
2
73°
57°
3
74°
58°
4
73°
58°
5
74°
57°
6
75°
56°
7
72°
55°
8
73°
54°
9
71°
54°
10
72°
60°
11
72°
54°
12
74°
54°
13
76°
52°
14
74°
59°
15
74°
57°
16
72°
53°
17
69°
52°
18
70°
52°
19
70°
57°
20
72°
57°
21
75°
56°
22
71°
56°
23
73°
55°
24
74°
53°
25
72°
55°
26
67°
48°
27
72°
49°
28
65°
48°
29
64°
48°
30
67°
49°
1
67°
47°
2
Hist. Avg.
67°
52°
3
Hist. Avg.
67°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bayside
Bayside's September 2026 forecast shows daily high temperatures ranging from 64° to 77°, with overnight lows between 47° and 60°. 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 Bayside. See also: October | November | December.