S
M
T
W
T
F
S
30
87°
56°
31
79°
56°
1
79°
63°
2
85°
56°
3
85°
62°
4
84°
64°
5
87°
57°
6
86°
54°
7
77°
53°
8
77°
53°
9
78°
59°
10
81°
60°
11
83°
53°
12
76°
53°
13
75°
52°
14
76°
59°
15
81°
52°
16
83°
50°
17
75°
50°
18
73°
49°
19
73°
50°
20
74°
50°
21
71°
49°
22
71°
50°
23
73°
48°
24
74°
54°
25
78°
55°
26
78°
55°
27
79°
48°
28
73°
55°
29
73°
55°
30
77°
51°
1
71°
52°
2
72°
48°
3
68°
46°
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 68° to 87°, with overnight lows between 46° and 64°. The average high for September is 77° with an average low of 54°. 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.
