S
M
T
W
T
F
S
30
76°
46°
31
78°
49°
1
79°
47°
2
74°
51°
3
78°
51°
4
81°
44°
5
72°
40°
6
69°
39°
7
70°
41°
8
69°
40°
9
70°
41°
10
69°
40°
11
69°
40°
12
72°
37°
13
68°
38°
14
Hist. Avg.
72°
43°
15
Hist. Avg.
71°
42°
16
Hist. Avg.
71°
42°
17
Hist. Avg.
71°
42°
18
Hist. Avg.
70°
41°
19
Hist. Avg.
70°
41°
20
Hist. Avg.
69°
41°
21
Hist. Avg.
69°
40°
22
Hist. Avg.
68°
40°
23
Hist. Avg.
68°
40°
24
Hist. Avg.
68°
39°
25
Hist. Avg.
67°
39°
26
Hist. Avg.
67°
39°
27
Hist. Avg.
66°
38°
28
Hist. Avg.
66°
38°
29
Hist. Avg.
66°
38°
30
Hist. Avg.
65°
38°
1
Hist. Avg.
65°
37°
2
Hist. Avg.
64°
37°
3
Hist. Avg.
64°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Roy
Roy's September 2026 forecast shows daily high temperatures ranging from 68° to 81°, with overnight lows between 37° and 51°. The average high for September is 73° with an average low of 43°. 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 Roy. See also: October | November | December.
