S
M
T
W
T
F
S
30
91°
75°
31
92°
77°
1
94°
77°
2
93°
77°
3
90°
78°
4
92°
79°
5
91°
80°
6
91°
79°
7
89°
75°
8
90°
74°
9
91°
75°
10
90°
76°
11
89°
78°
12
90°
77°
13
91°
75°
14
89°
76°
15
90°
77°
16
89°
76°
17
88°
75°
18
88°
75°
19
89°
76°
20
87°
75°
21
86°
76°
22
85°
74°
23
86°
74°
24
86°
73°
25
87°
75°
26
86°
75°
27
86°
74°
28
87°
75°
29
87°
75°
30
88°
74°
1
86°
74°
2
85°
73°
3
87°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Southgate
Southgate's September 2026 forecast shows daily high temperatures ranging from 85° to 91°, with overnight lows between 73° and 78°. The average high for September is 88° with an average low of 75°. 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 Southgate. See also: October | November | December.
