S
M
T
W
T
F
S
30
87°
71°
31
91°
72°
1
93°
71°
2
96°
72°
3
95°
73°
4
94°
71°
5
96°
70°
6
90°
69°
7
86°
68°
8
87°
68°
9
88°
64°
10
89°
66°
11
93°
75°
12
90°
72°
13
90°
77°
14
94°
73°
15
86°
66°
16
87°
61°
17
88°
61°
18
92°
65°
19
89°
70°
20
89°
65°
21
92°
64°
22
N/A
23
73°
66°
24
69°
62°
25
74°
55°
26
N/A
27
82°
51°
28
82°
56°
29
86°
60°
30
87°
64°
1
88°
66°
2
88°
68°
3
88°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Brunswick
Brunswick's September 2026 forecast shows daily high temperatures ranging from 82° to 88°, with overnight lows between 51° and 68°. The average high for September is 86° with an average low of 62°. 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 Brunswick. See also: October | November | December.
