S
M
T
W
T
F
S
29
61°
48°
30
70°
49°
1
66°
42°
2
64°
55°
3
72°
50°
4
66°
45°
5
59°
50°
6
59°
49°
7
60°
44°
8
60°
52°
9
69°
53°
10
70°
46°
11
59°
40°
12
58°
44°
13
65°
50°
14
67°
52°
15
69°
52°
16
66°
51°
17
69°
52°
18
70°
51°
19
69°
50°
20
65°
42°
21
58°
45°
22
66°
51°
23
69°
46°
24
61°
42°
25
55°
38°
26
55°
42°
27
60°
40°
28
59°
37°
29
58°
39°
30
57°
40°
31
59°
38°
1
59°
46°
2
61°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Sheldon
Sheldon's December 2026 forecast shows daily high temperatures ranging from 55° to 72°, with overnight lows between 37° and 55°. The average high for December is 63° with an average low of 46°. 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 Sheldon. See also: January | February | March.