S
M
T
W
T
F
S
30
73°
55°
31
72°
54°
1
72°
52°
2
73°
58°
3
74°
52°
4
74°
55°
5
73°
57°
6
71°
53°
7
72°
51°
8
77°
57°
9
73°
50°
10
73°
50°
11
74°
57°
12
72°
53°
13
71°
48°
14
69°
58°
15
71°
59°
16
78°
55°
17
75°
47°
18
69°
46°
19
65°
45°
20
64°
47°
21
65°
45°
22
68°
50°
23
67°
47°
24
64°
45°
25
65°
44°
26
66°
45°
27
64°
45°
28
63°
44°
29
61°
43°
30
62°
40°
1
Hist. Avg.
67°
46°
2
Hist. Avg.
66°
46°
3
Hist. Avg.
66°
46°
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 61° to 78°, with overnight lows between 40° and 59°. The average high for September is 70° 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 New Brighton. See also: October | November | December.
