S
M
T
W
T
F
S
29
54°
36°
30
52°
31°
1
53°
33°
2
54°
31°
3
54°
30°
4
51°
31°
5
53°
35°
6
58°
46°
7
61°
39°
8
65°
32°
9
61°
31°
10
53°
32°
11
55°
37°
12
56°
39°
13
54°
35°
14
51°
30°
15
49°
30°
16
49°
31°
17
51°
32°
18
53°
41°
19
54°
42°
20
54°
46°
21
61°
46°
22
63°
45°
23
62°
41°
24
64°
38°
25
61°
40°
26
61°
40°
27
60°
30°
28
59°
32°
29
49°
28°
30
49°
24°
31
51°
23°
1
42°
26°
2
46°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Atlanta
Atlanta's December 2026 forecast shows daily high temperatures ranging from 42° to 65°, with overnight lows between 23° and 46°. The average high for December is 55° with an average low of 35°. 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 Atlanta. See also: January | February | March.
