S
M
T
W
T
F
S
30
99°
74°
31
100°
74°
1
102°
75°
2
102°
74°
3
100°
73°
4
99°
73°
5
99°
74°
6
98°
73°
7
97°
72°
8
98°
73°
9
98°
76°
10
100°
72°
11
100°
75°
12
100°
72°
13
97°
72°
14
95°
69°
15
95°
68°
16
Hist. Avg.
98°
74°
17
Hist. Avg.
98°
74°
18
Hist. Avg.
97°
74°
19
Hist. Avg.
97°
73°
20
Hist. Avg.
96°
73°
21
Hist. Avg.
96°
72°
22
Hist. Avg.
96°
72°
23
Hist. Avg.
95°
72°
24
Hist. Avg.
95°
71°
25
Hist. Avg.
94°
71°
26
Hist. Avg.
94°
70°
27
Hist. Avg.
94°
70°
28
Hist. Avg.
93°
70°
29
Hist. Avg.
93°
69°
30
Hist. Avg.
92°
69°
1
Hist. Avg.
92°
68°
2
Hist. Avg.
92°
68°
3
Hist. Avg.
91°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Scottsdale
Scottsdale's September 2026 forecast shows daily high temperatures ranging from 95° to 102°, with overnight lows between 68° and 76°. The average high for September is 99° with an average low of 73°. 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.