S
M
T
W
T
F
S
30
103°
78°
31
89°
74°
1
98°
76°
2
101°
82°
3
100°
83°
4
100°
83°
5
100°
83°
6
104°
81°
7
106°
83°
8
106°
83°
9
105°
89°
10
106°
85°
11
103°
88°
12
102°
84°
13
102°
84°
14
103°
81°
15
98°
82°
16
92°
71°
17
89°
73°
18
98°
74°
19
100°
76°
20
99°
74°
21
100°
79°
22
97°
76°
23
95°
82°
24
87°
77°
25
92°
72°
26
96°
75°
27
96°
77°
28
83°
68°
29
81°
66°
30
83°
66°
1
92°
66°
2
94°
75°
3
95°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Scottsdale
Scottsdale's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Scottsdale. See also: October | November | December.