S
M
T
W
T
F
S
30
91°
72°
31
90°
71°
1
91°
72°
2
91°
71°
3
90°
71°
4
87°
70°
5
88°
68°
6
89°
68°
7
90°
70°
8
91°
70°
9
91°
71°
10
90°
70°
11
91°
70°
12
91°
69°
13
90°
70°
14
88°
66°
15
90°
68°
16
90°
67°
17
89°
68°
18
87°
66°
19
90°
66°
20
89°
64°
21
88°
65°
22
87°
66°
23
86°
65°
24
85°
65°
25
85°
64°
26
84°
64°
27
86°
63°
28
83°
64°
29
85°
63°
30
85°
63°
1
84°
62°
2
83°
55°
3
77°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Riddle
Riddle's September 2026 forecast shows daily high temperatures ranging from 77° to 91°, with overnight lows between 53° and 72°. The average high for September is 88° with an average low of 67°. 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 Riddle. See also: October | November | December.
