S
M
T
W
T
F
S
29
54°
36°
30
56°
39°
1
55°
40°
2
55°
36°
3
56°
35°
4
54°
36°
5
54°
35°
6
53°
34°
7
50°
30°
8
51°
31°
9
52°
36°
10
56°
42°
11
58°
36°
12
50°
30°
13
50°
33°
14
Hist. Avg.
56°
39°
15
Hist. Avg.
56°
38°
16
Hist. Avg.
56°
38°
17
Hist. Avg.
56°
38°
18
Hist. Avg.
56°
38°
19
Hist. Avg.
55°
38°
20
Hist. Avg.
55°
38°
21
Hist. Avg.
55°
38°
22
Hist. Avg.
55°
38°
23
Hist. Avg.
55°
37°
24
Hist. Avg.
55°
37°
25
Hist. Avg.
54°
37°
26
Hist. Avg.
54°
37°
27
Hist. Avg.
54°
37°
28
Hist. Avg.
54°
37°
29
Hist. Avg.
54°
37°
30
Hist. Avg.
54°
36°
31
Hist. Avg.
54°
36°
1
Hist. Avg.
54°
36°
2
Hist. Avg.
54°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Atlanta
Atlanta's December 2026 forecast shows daily high temperatures ranging from 50° to 58°, with overnight lows between 30° and 42°. The average high for December is 54° 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.