S
M
T
W
T
F
S
30
77°
66°
31
75°
65°
1
77°
63°
2
70°
61°
3
70°
63°
4
71°
62°
5
70°
60°
6
71°
64°
7
73°
64°
8
70°
63°
9
70°
63°
10
72°
64°
11
75°
63°
12
74°
64°
13
75°
64°
14
75°
54°
15
69°
54°
16
67°
55°
17
66°
54°
18
66°
53°
19
65°
55°
20
66°
57°
21
72°
59°
22
72°
60°
23
73°
53°
24
73°
51°
25
67°
51°
26
64°
54°
27
69°
57°
28
70°
58°
29
71°
52°
30
69°
52°
1
64°
53°
2
64°
51°
3
67°
55°
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 64° to 77°, with overnight lows between 51° and 66°. The average high for September is 70° with an average low of 58°. 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.
