S
M
T
W
T
F
S
29
37°
25°
30
37°
25°
1
36°
19°
2
37°
17°
3
34°
20°
4
32°
27°
5
37°
30°
6
41°
34°
7
46°
26°
8
47°
24°
9
40°
20°
10
33°
19°
11
34°
20°
12
32°
19°
13
33°
21°
14
31°
23°
15
32°
22°
16
34°
25°
17
34°
25°
18
35°
24°
19
35°
27°
20
43°
24°
21
45°
19°
22
36°
21°
23
34°
24°
24
39°
23°
25
38°
22°
26
35°
14°
27
32°
11°
28
30°
10°
29
24°
4°
30
27°
4°
31
25°
7°
1
20°
10°
2
25°
11°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Cary
Cary's December 2026 forecast shows daily high temperatures ranging from 20° to 47°, with overnight lows between 4° and 34°. The average high for December is 35° with an average low of 20°. 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 Cary. See also: January | February | March.
