S
M
T
W
T
F
S
30
89°
67°
31
91°
68°
1
94°
71°
2
95°
72°
3
95°
73°
4
97°
73°
5
91°
68°
6
81°
63°
7
84°
59°
8
88°
63°
9
91°
70°
10
80°
65°
11
81°
68°
12
82°
67°
13
87°
63°
14
86°
61°
15
89°
67°
16
85°
63°
17
80°
59°
18
73°
54°
19
71°
55°
20
76°
55°
21
73°
53°
22
74°
55°
23
72°
52°
24
80°
58°
25
77°
56°
26
79°
56°
27
79°
55°
28
78°
56°
29
78°
56°
30
76°
55°
1
74°
52°
2
72°
54°
3
77°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in St. Leon
St. Leon's September 2026 forecast shows daily high temperatures ranging from 71° to 89°, with overnight lows between 52° and 68°. The average high for September is 78° with an average low of 58°. 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 St. Leon. See also: October | November | December.
