S
M
T
W
T
F
S
30
77°
59°
31
76°
56°
1
77°
61°
2
79°
63°
3
79°
64°
4
83°
63°
5
82°
64°
6
81°
63°
7
78°
62°
8
79°
61°
9
77°
62°
10
75°
62°
11
77°
61°
12
77°
60°
13
78°
59°
14
79°
59°
15
80°
58°
16
79°
59°
17
79°
60°
18
75°
59°
19
77°
58°
20
79°
59°
21
81°
55°
22
81°
53°
23
80°
46°
24
72°
50°
25
75°
51°
26
78°
50°
27
75°
56°
28
76°
57°
29
82°
57°
30
79°
55°
1
79°
53°
2
75°
55°
3
72°
53°
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 72° to 83°, with overnight lows between 46° and 64°. The average high for September is 78° with an average low of 58°. 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.
