S
M
T
W
T
F
S
30
97°
75°
31
99°
75°
1
100°
75°
2
102°
75°
3
99°
74°
4
94°
75°
5
93°
74°
6
97°
72°
7
92°
74°
8
91°
72°
9
92°
73°
10
94°
72°
11
93°
70°
12
93°
71°
13
93°
72°
14
91°
70°
15
90°
70°
16
88°
66°
17
84°
69°
18
81°
70°
19
83°
70°
20
86°
69°
21
86°
70°
22
85°
69°
23
87°
68°
24
87°
69°
25
83°
68°
26
85°
68°
27
85°
64°
28
81°
59°
29
79°
58°
30
79°
58°
1
80°
60°
2
81°
63°
3
80°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Southmont
Southmont's September 2026 forecast shows daily high temperatures ranging from 79° to 99°, with overnight lows between 58° and 75°. The average high for September is 87° 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 Southmont. See also: October | November | December.
