S
M
T
W
T
F
S
29
46°
27°
30
47°
30°
1
46°
34°
2
43°
31°
3
54°
23°
4
51°
21°
5
38°
27°
6
42°
27°
7
49°
31°
8
52°
34°
9
37°
21°
10
51°
38°
11
Hist. Avg.
44°
26°
12
Hist. Avg.
43°
26°
13
Hist. Avg.
43°
26°
14
Hist. Avg.
43°
25°
15
Hist. Avg.
42°
25°
16
Hist. Avg.
42°
25°
17
Hist. Avg.
42°
25°
18
Hist. Avg.
41°
24°
19
Hist. Avg.
41°
24°
20
Hist. Avg.
41°
24°
21
Hist. Avg.
40°
24°
22
Hist. Avg.
40°
24°
23
Hist. Avg.
40°
24°
24
Hist. Avg.
40°
23°
25
Hist. Avg.
40°
23°
26
Hist. Avg.
39°
23°
27
Hist. Avg.
39°
23°
28
Hist. Avg.
39°
22°
29
Hist. Avg.
39°
22°
30
Hist. Avg.
39°
22°
31
Hist. Avg.
39°
22°
1
Hist. Avg.
39°
22°
2
Hist. Avg.
38°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in St. Leon
St. Leon's December 2026 forecast shows daily high temperatures ranging from 37° to 54°, with overnight lows between 21° and 38°. The average high for December is 46° with an average low of 29°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in St. Leon. See also: January | February | March.
