S
M
T
W
T
F
S
30
93°
72°
31
93°
72°
1
92°
71°
2
92°
71°
3
91°
72°
4
90°
69°
5
92°
71°
6
93°
72°
7
92°
71°
8
91°
70°
9
91°
71°
10
92°
71°
11
91°
70°
12
91°
69°
13
90°
70°
14
91°
70°
15
87°
69°
16
87°
69°
17
86°
68°
18
87°
67°
19
88°
69°
20
86°
65°
21
85°
63°
22
86°
65°
23
87°
67°
24
88°
66°
25
89°
67°
26
88°
68°
27
89°
67°
28
85°
66°
29
85°
64°
30
87°
64°
1
85°
61°
2
84°
61°
3
Hist. Avg.
85°
62°
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 84° to 93°, with overnight lows between 61° and 72°. The average high for September is 89° with an average low of 68°. 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.
