S
M
T
W
T
F
S
30
66°
57°
31
64°
54°
1
68°
52°
2
66°
57°
3
70°
59°
4
64°
57°
5
64°
55°
6
73°
55°
7
66°
57°
8
61°
54°
9
63°
50°
10
63°
48°
11
64°
54°
12
70°
52°
13
70°
59°
14
73°
61°
15
64°
55°
16
61°
55°
17
61°
55°
18
63°
54°
19
66°
55°
20
61°
52°
21
66°
50°
22
68°
54°
23
64°
46°
24
70°
54°
25
63°
46°
26
67°
49°
27
67°
50°
28
66°
50°
29
69°
58°
30
64°
51°
1
61°
48°
2
61°
49°
3
62°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Preston Brook
Preston Brook's September 2026 forecast shows daily high temperatures ranging from 61° to 70°, with overnight lows between 46° and 58°. The average high for September is 65° with an average low of 50°. 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 Preston Brook. See also: October | November | December.
