S
M
T
W
T
F
S
29
52°
43°
30
60°
38°
1
60°
35°
2
56°
37°
3
59°
30°
4
60°
29°
5
46°
30°
6
45°
28°
7
45°
29°
8
46°
36°
9
48°
35°
10
58°
33°
11
51°
32°
12
47°
31°
13
45°
30°
14
45°
29°
15
44°
25°
16
44°
23°
17
41°
25°
18
41°
35°
19
49°
37°
20
50°
31°
21
54°
31°
22
46°
40°
23
56°
41°
24
56°
37°
25
55°
35°
26
54°
35°
27
50°
37°
28
52°
38°
29
54°
39°
30
54°
39°
31
56°
35°
1
55°
34°
2
53°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Georgetown
Georgetown's December 2026 forecast shows daily high temperatures ranging from 41° to 60°, with overnight lows between 23° and 43°. The average high for December is 51° with an average low of 34°. 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 Georgetown. See also: January | February | March.