S
M
T
W
T
F
S
30
108°
82°
31
100°
80°
1
104°
79°
2
104°
75°
3
100°
72°
4
97°
78°
5
98°
75°
6
91°
77°
7
104°
76°
8
107°
85°
9
107°
85°
10
113°
88°
11
107°
90°
12
108°
85°
13
107°
83°
14
100°
79°
15
100°
78°
16
97°
74°
17
94°
73°
18
100°
75°
19
102°
70°
20
98°
73°
21
97°
75°
22
98°
70°
23
102°
69°
24
92°
74°
25
97°
74°
26
98°
76°
27
95°
80°
28
87°
70°
29
90°
68°
30
96°
68°
1
101°
72°
2
102°
74°
3
99°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in La Quinta
La Quinta's September 2026 forecast shows daily high temperatures ranging from 99° to 102°, with overnight lows between 72° and 75°. The average high for September is 101° with an average low of 74°. 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 La Quinta. See also: October | November | December.
