S
M
T
W
T
F
S
30
110°
86°
31
107°
83°
1
105°
82°
2
106°
78°
3
103°
72°
4
103°
77°
5
102°
72°
6
99°
79°
7
102°
77°
8
110°
80°
9
109°
89°
10
113°
90°
11
110°
88°
12
108°
85°
13
107°
83°
14
108°
75°
15
103°
83°
16
103°
80°
17
100°
78°
18
102°
74°
19
103°
65°
20
102°
69°
21
102°
75°
22
98°
65°
23
103°
69°
24
96°
73°
25
104°
75°
26
105°
80°
27
98°
76°
28
96°
70°
29
98°
69°
30
102°
72°
1
104°
73°
2
102°
72°
3
103°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in El Centro
El Centro's September 2026 forecast shows daily high temperatures ranging from 96° to 105°, with overnight lows between 69° and 80°. The average high for September is 101° 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 El Centro. See also: October | November | December.