S
M
T
W
T
F
S
30
91°
72°
31
93°
69°
1
95°
71°
2
96°
66°
3
95°
71°
4
95°
68°
5
93°
69°
6
95°
70°
7
88°
70°
8
99°
71°
9
84°
56°
10
83°
58°
11
88°
65°
12
77°
58°
13
73°
65°
14
80°
55°
15
70°
55°
16
74°
54°
17
74°
52°
18
71°
52°
19
74°
51°
20
74°
52°
21
77°
51°
22
81°
57°
23
81°
58°
24
80°
58°
25
76°
57°
26
75°
57°
27
80°
56°
28
77°
57°
29
75°
57°
30
77°
53°
1
69°
46°
2
65°
44°
3
64°
41°
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 64° to 99°, with overnight lows between 41° and 71°. The average high for September is 77° with an average low of 55°. 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.
