S
M
T
W
T
F
S
30
104°
77°
31
105°
76°
1
104°
75°
2
103°
75°
3
103°
76°
4
104°
74°
5
102°
74°
6
102°
76°
7
103°
75°
8
101°
76°
9
100°
75°
10
100°
75°
11
101°
76°
12
102°
75°
13
104°
76°
14
104°
72°
15
101°
71°
16
98°
72°
17
98°
72°
18
101°
71°
19
104°
75°
20
104°
76°
21
103°
75°
22
104°
75°
23
105°
76°
24
102°
74°
25
96°
73°
26
94°
70°
27
95°
69°
28
94°
68°
29
95°
67°
30
93°
67°
1
92°
66°
2
92°
66°
3
95°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Quartzsite
Quartzsite's September 2026 forecast shows daily high temperatures ranging from 92° to 105°, with overnight lows between 66° and 77°. The average high for September is 100° 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 Quartzsite. See also: October | November | December.