S
M
T
W
T
F
S
30
97°
65°
31
98°
72°
1
99°
75°
2
99°
75°
3
99°
76°
4
100°
75°
5
100°
75°
6
98°
75°
7
97°
75°
8
97°
74°
9
99°
75°
10
94°
71°
11
89°
68°
12
88°
65°
13
89°
66°
14
83°
63°
15
81°
68°
16
83°
67°
17
84°
67°
18
87°
66°
19
87°
67°
20
86°
67°
21
86°
66°
22
85°
66°
23
86°
65°
24
86°
65°
25
85°
64°
26
85°
65°
27
86°
64°
28
86°
64°
29
84°
63°
30
86°
64°
1
85°
63°
2
84°
63°
3
84°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rich
Rich's September 2026 forecast shows daily high temperatures ranging from 81° to 100°, with overnight lows between 62° and 76°. The average high for September is 89° with an average low of 68°. 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 Rich. See also: October | November | December.