S
M
T
W
T
F
S
30
69°
52°
31
79°
41°
1
77°
54°
2
64°
46°
3
64°
48°
4
61°
41°
5
72°
37°
6
73°
43°
7
57°
52°
8
64°
52°
9
73°
46°
10
73°
46°
11
72°
45°
12
73°
46°
13
61°
48°
14
57°
48°
15
64°
48°
16
73°
45°
17
72°
43°
18
73°
43°
19
73°
41°
20
75°
41°
21
77°
41°
22
77°
43°
23
70°
39°
24
74°
48°
25
62°
42°
26
58°
36°
27
58°
39°
28
60°
40°
29
58°
40°
30
61°
39°
1
61°
40°
2
62°
37°
3
62°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bayview
Bayview's September 2026 forecast shows daily high temperatures ranging from 58° to 77°, with overnight lows between 36° and 48°. The average high for September is 64° with an average low of 40°. 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 Bayview. See also: October | November | December.