S
M
T
W
T
F
S
29
52°
45°
30
62°
45°
1
61°
46°
2
63°
44°
3
53°
40°
4
56°
37°
5
59°
42°
6
60°
39°
7
49°
38°
8
48°
35°
9
48°
35°
10
49°
30°
11
46°
29°
12
47°
29°
13
50°
28°
14
48°
28°
15
49°
33°
16
47°
39°
17
52°
41°
18
57°
37°
19
56°
27°
20
49°
25°
21
46°
25°
22
45°
28°
23
47°
30°
24
45°
27°
25
45°
26°
26
44°
27°
27
45°
26°
28
46°
26°
29
47°
30°
30
49°
33°
31
55°
27°
1
50°
23°
2
44°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lilburn
Lilburn's December 2026 forecast shows daily high temperatures ranging from 44° to 63°, with overnight lows between 22° and 46°. The average high for December is 51° with an average low of 33°. 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 Lilburn. See also: January | February | March.
