S
M
T
W
T
F
S
30
87°
62°
31
90°
66°
1
90°
66°
2
88°
65°
3
89°
66°
4
88°
61°
5
87°
64°
6
88°
65°
7
89°
62°
8
85°
64°
9
88°
64°
10
88°
63°
11
87°
64°
12
87°
64°
13
86°
61°
14
84°
58°
15
82°
58°
16
84°
59°
17
85°
62°
18
86°
61°
19
85°
61°
20
84°
62°
21
80°
61°
22
85°
60°
23
85°
61°
24
84°
55°
25
79°
54°
26
81°
59°
27
83°
58°
28
82°
58°
29
84°
59°
30
Hist. Avg.
78°
50°
1
Hist. Avg.
78°
49°
2
Hist. Avg.
78°
49°
3
Hist. Avg.
77°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Royal
Royal's September 2026 forecast shows daily high temperatures ranging from 79° to 90°, with overnight lows between 54° and 66°. The average high for September is 85° with an average low of 61°. 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.
