S
M
T
W
T
F
S
30
79°
63°
31
81°
63°
1
83°
62°
2
76°
58°
3
74°
58°
4
75°
60°
5
79°
60°
6
81°
62°
7
82°
62°
8
82°
61°
9
81°
62°
10
81°
61°
11
80°
61°
12
82°
62°
13
82°
61°
14
77°
52°
15
69°
53°
16
71°
56°
17
74°
55°
18
80°
58°
19
80°
57°
20
79°
54°
21
73°
50°
22
68°
52°
23
69°
54°
24
66°
56°
25
68°
55°
26
71°
55°
27
76°
56°
28
77°
55°
29
77°
55°
30
76°
54°
1
75°
47°
2
72°
44°
3
62°
41°
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 62° to 83°, with overnight lows between 41° and 63°. The average high for September is 76° with an average low of 56°. 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.
