S
M
T
W
T
F
S
30
92°
75°
31
88°
76°
1
91°
77°
2
90°
76°
3
90°
75°
4
92°
74°
5
91°
74°
6
91°
74°
7
90°
74°
8
89°
73°
9
90°
74°
10
91°
75°
11
90°
75°
12
91°
76°
13
90°
74°
14
89°
74°
15
91°
75°
16
88°
74°
17
87°
75°
18
87°
75°
19
87°
75°
20
88°
74°
21
86°
74°
22
87°
74°
23
86°
74°
24
87°
73°
25
86°
74°
26
87°
74°
27
87°
73°
28
88°
74°
29
86°
73°
30
85°
72°
1
84°
72°
2
85°
72°
3
86°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lake Nona South
Lake Nona South's September 2026 forecast shows daily high temperatures ranging from 84° to 92°, with overnight lows between 71° and 76°. The average high for September is 88° with an average low of 74°. 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 Lake Nona South. See also: October | November | December.
