S
M
T
W
T
F
S
30
91°
70°
31
86°
66°
1
84°
62°
2
82°
65°
3
83°
65°
4
82°
65°
5
87°
69°
6
86°
70°
7
88°
69°
8
89°
68°
9
86°
69°
10
85°
66°
11
82°
67°
12
81°
67°
13
81°
65°
14
84°
67°
15
83°
64°
16
86°
68°
17
85°
67°
18
78°
62°
19
79°
63°
20
82°
65°
21
84°
67°
22
82°
66°
23
81°
67°
24
80°
64°
25
81°
66°
26
84°
67°
27
84°
67°
28
83°
66°
29
84°
67°
30
83°
67°
1
84°
66°
2
83°
66°
3
81°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in South Gate
South Gate's September 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 62° and 70°. The average high for September is 83° with an average low of 66°. 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 South Gate. See also: October | November | December.
