S
M
T
W
T
F
S
30
85°
71°
31
92°
70°
1
94°
75°
2
97°
75°
3
96°
75°
4
94°
75°
5
97°
70°
6
86°
69°
7
86°
66°
8
85°
62°
9
86°
62°
10
92°
67°
11
94°
73°
12
88°
72°
13
90°
75°
14
94°
72°
15
85°
65°
16
86°
61°
17
89°
62°
18
94°
71°
19
88°
69°
20
89°
66°
21
91°
68°
22
86°
68°
23
69°
64°
24
65°
60°
25
74°
54°
26
81°
55°
27
81°
52°
28
82°
53°
29
85°
58°
30
86°
60°
1
87°
60°
2
90°
69°
3
84°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rex
Rex's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Rex. See also: October | November | December.
