S
M
T
W
T
F
S
29
64°
44°
30
66°
34°
1
53°
30°
2
49°
29°
3
51°
34°
4
54°
39°
5
52°
34°
6
50°
31°
7
50°
28°
8
47°
27°
9
47°
27°
10
48°
28°
11
51°
29°
12
53°
34°
13
53°
33°
14
52°
31°
15
50°
29°
16
47°
31°
17
50°
29°
18
47°
26°
19
46°
25°
20
48°
27°
21
50°
28°
22
53°
27°
23
48°
25°
24
45°
24°
25
45°
26°
26
46°
29°
27
47°
28°
28
48°
28°
29
47°
26°
30
47°
28°
31
48°
24°
1
46°
25°
2
47°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Celina
Celina's December 2026 forecast shows daily high temperatures ranging from 45° to 66°, with overnight lows between 24° and 44°. The average high for December is 50° 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 Celina. See also: January | February | March.