S
M
T
W
T
F
S
30
89°
71°
31
90°
70°
1
93°
73°
2
94°
73°
3
95°
74°
4
91°
74°
5
94°
72°
6
93°
70°
7
90°
69°
8
90°
68°
9
87°
65°
10
90°
66°
11
90°
64°
12
86°
61°
13
85°
62°
14
83°
61°
15
82°
65°
16
79°
64°
17
81°
63°
18
83°
64°
19
83°
63°
20
79°
63°
21
79°
62°
22
81°
62°
23
82°
61°
24
84°
61°
25
84°
62°
26
83°
60°
27
84°
61°
28
84°
61°
29
83°
60°
30
84°
60°
1
82°
59°
2
81°
59°
3
82°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Royal
Royal's September 2026 forecast shows daily high temperatures ranging from 79° to 95°, with overnight lows between 58° and 74°. The average high for September is 85° with an average low of 64°. 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 Royal. See also: October | November | December.
