S
M
T
W
T
F
S
30
90°
69°
31
90°
69°
1
89°
68°
2
90°
69°
3
87°
66°
4
84°
64°
5
84°
64°
6
85°
62°
7
88°
66°
8
89°
67°
9
89°
67°
10
88°
66°
11
89°
67°
12
89°
67°
13
87°
65°
14
87°
63°
15
88°
64°
16
88°
62°
17
86°
64°
18
80°
56°
19
86°
57°
20
79°
56°
21
79°
59°
22
81°
59°
23
81°
61°
24
84°
55°
25
84°
56°
26
77°
54°
27
78°
54°
28
82°
57°
29
79°
59°
30
83°
55°
1
80°
58°
2
80°
58°
3
81°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Red Bank
Red Bank's September 2026 forecast shows daily high temperatures ranging from 77° to 90°, with overnight lows between 54° and 69°. The average high for September is 85° 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 Red Bank. See also: October | November | December.
