S
M
T
W
T
F
S
30
89°
63°
31
89°
60°
1
88°
66°
2
94°
62°
3
90°
62°
4
89°
59°
5
89°
65°
6
90°
68°
7
96°
68°
8
87°
58°
9
80°
53°
10
85°
65°
11
86°
52°
12
77°
52°
13
72°
50°
14
73°
51°
15
78°
50°
16
80°
52°
17
77°
52°
18
77°
53°
19
76°
45°
20
68°
49°
21
80°
52°
22
79°
53°
23
80°
52°
24
78°
51°
25
72°
51°
26
71°
50°
27
78°
51°
28
77°
49°
29
72°
42°
30
64°
39°
1
61°
39°
2
61°
34°
3
62°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Brewster
Brewster's September 2026 forecast shows daily high temperatures ranging from 61° to 96°, with overnight lows between 34° and 68°. The average high for September is 76° with an average low of 51°. 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 Brewster. See also: October | November | December.
