S
M
T
W
T
F
S
30
83°
61°
31
85°
61°
1
87°
65°
2
88°
65°
3
88°
64°
4
87°
65°
5
87°
65°
6
85°
63°
7
82°
64°
8
86°
64°
9
85°
59°
10
86°
58°
11
83°
63°
12
84°
62°
13
85°
63°
14
83°
61°
15
85°
62°
16
84°
61°
17
79°
62°
18
Hist. Avg.
80°
57°
19
Hist. Avg.
80°
56°
20
Hist. Avg.
80°
56°
21
Hist. Avg.
79°
56°
22
Hist. Avg.
79°
55°
23
Hist. Avg.
78°
55°
24
Hist. Avg.
78°
54°
25
Hist. Avg.
78°
54°
26
Hist. Avg.
77°
53°
27
Hist. Avg.
77°
53°
28
Hist. Avg.
77°
52°
29
Hist. Avg.
76°
52°
30
Hist. Avg.
76°
52°
1
Hist. Avg.
76°
51°
2
Hist. Avg.
75°
51°
3
Hist. Avg.
75°
50°
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 79° to 88°, with overnight lows between 58° and 65°. The average high for September is 85° with an average low of 63°. 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.
