S
M
T
W
T
F
S
30
89°
68°
31
95°
66°
1
97°
73°
2
100°
74°
3
99°
75°
4
101°
72°
5
92°
68°
6
85°
62°
7
82°
62°
8
83°
62°
9
81°
61°
10
84°
64°
11
87°
64°
12
84°
61°
13
83°
60°
14
86°
61°
15
85°
65°
16
81°
65°
17
79°
64°
18
81°
59°
19
77°
57°
20
77°
57°
21
78°
59°
22
79°
61°
23
80°
61°
24
83°
62°
25
82°
62°
26
79°
61°
27
78°
62°
28
78°
62°
29
79°
61°
30
77°
60°
1
74°
59°
2
74°
59°
3
77°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Red Oak
Red Oak's September 2026 forecast shows daily high temperatures ranging from 74° to 101°, with overnight lows between 57° and 75°. The average high for September is 83° 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 Red Oak. See also: October | November | December.
