S
M
T
W
T
F
S
29
69°
52°
30
71°
51°
1
70°
52°
2
71°
51°
3
69°
49°
4
60°
48°
5
68°
50°
6
70°
49°
7
67°
48°
8
60°
47°
9
59°
45°
10
59°
41°
11
69°
39°
12
57°
40°
13
57°
40°
14
65°
36°
15
55°
44°
16
64°
45°
17
70°
46°
18
69°
47°
19
67°
41°
20
68°
31°
21
68°
32°
22
54°
37°
23
57°
45°
24
69°
34°
25
71°
33°
26
56°
37°
27
56°
40°
28
58°
43°
29
60°
45°
30
65°
45°
31
70°
34°
1
70°
31°
2
60°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Atlantic
Atlantic's December 2026 forecast shows daily high temperatures ranging from 54° to 71°, with overnight lows between 29° and 52°. The average high for December is 64° with an average low of 42°. 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 Atlantic. See also: January | February | March.
