S
M
T
W
T
F
S
30
81°
63°
31
80°
70°
1
87°
69°
2
73°
66°
3
89°
69°
4
88°
75°
5
82°
68°
6
77°
65°
7
81°
62°
8
82°
60°
9
87°
65°
10
89°
72°
11
82°
67°
12
77°
72°
13
80°
69°
14
80°
62°
15
76°
65°
16
80°
70°
17
83°
68°
18
81°
65°
19
74°
60°
20
73°
60°
21
71°
59°
22
73°
60°
23
73°
62°
24
77°
59°
25
68°
54°
26
68°
55°
27
72°
62°
28
76°
59°
29
69°
54°
30
71°
61°
1
72°
58°
2
68°
55°
3
71°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in New Brighton
New Brighton's September 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 54° and 72°. The average high for September is 75° 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 New Brighton. See also: October | November | December.
