S
M
T
W
T
F
S
29
47°
37°
30
49°
37°
1
48°
36°
2
48°
35°
3
46°
35°
4
42°
34°
5
47°
34°
6
47°
33°
7
39°
30°
8
36°
28°
9
34°
28°
10
34°
27°
11
36°
32°
12
37°
31°
13
36°
32°
14
33°
23°
15
35°
24°
16
34°
26°
17
37°
30°
18
38°
29°
19
42°
24°
20
36°
20°
21
34°
21°
22
34°
23°
23
30°
25°
24
33°
23°
25
32°
23°
26
32°
15°
27
31°
14°
28
30°
9°
29
29°
11°
30
27°
22°
31
33°
23°
1
37°
16°
2
31°
17°
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 27° to 49°, with overnight lows between 9° and 37°. The average high for December is 37° with an average low of 26°. 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.
