S
M
T
W
T
F
S
30
100°
76°
31
101°
75°
1
100°
75°
2
100°
73°
3
99°
74°
4
102°
76°
5
105°
78°
6
101°
74°
7
98°
71°
8
97°
69°
9
97°
71°
10
99°
72°
11
104°
71°
12
104°
71°
13
102°
75°
14
104°
76°
15
104°
73°
16
100°
70°
17
101°
72°
18
102°
75°
19
102°
70°
20
101°
71°
21
100°
74°
22
98°
72°
23
94°
70°
24
90°
72°
25
92°
71°
26
95°
70°
27
93°
72°
28
94°
73°
29
94°
71°
30
93°
72°
1
89°
71°
2
90°
68°
3
87°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sun City West
Sun City West's September 2026 forecast shows daily high temperatures ranging from 87° to 105°, with overnight lows between 66° and 78°. The average high for September is 98° with an average low of 72°. 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 Sun City West. See also: October | November | December.
