S
M
T
W
T
F
S
30
108°
84°
31
105°
80°
1
101°
74°
2
102°
70°
3
99°
68°
4
100°
70°
5
103°
71°
6
91°
77°
7
97°
75°
8
110°
81°
9
109°
83°
10
113°
88°
11
108°
85°
12
105°
83°
13
105°
81°
14
105°
75°
15
101°
73°
16
98°
73°
17
99°
74°
18
101°
78°
19
100°
79°
20
94°
71°
21
93°
71°
22
98°
72°
23
97°
71°
24
96°
70°
25
97°
71°
26
102°
70°
27
100°
71°
28
97°
69°
29
94°
69°
30
94°
70°
1
92°
68°
2
91°
65°
3
91°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cathedral City
Cathedral City's September 2026 forecast shows daily high temperatures ranging from 91° to 102°, with overnight lows between 65° and 79°. The average high for September is 97° with an average low of 71°. 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 Cathedral City. See also: October | November | December.
