S
M
T
W
T
F
S
29
51°
37°
30
50°
32°
1
51°
34°
2
51°
32°
3
52°
31°
4
49°
31°
5
51°
36°
6
55°
47°
7
59°
40°
8
63°
33°
9
59°
32°
10
51°
33°
11
53°
38°
12
54°
40°
13
52°
36°
14
49°
31°
15
47°
30°
16
47°
31°
17
49°
33°
18
51°
42°
19
52°
43°
20
53°
46°
21
60°
46°
22
61°
45°
23
60°
42°
24
63°
39°
25
59°
41°
26
59°
41°
27
58°
31°
28
57°
32°
29
48°
29°
30
47°
25°
31
49°
24°
1
40°
27°
2
45°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Gainesville
Gainesville's December 2026 forecast shows daily high temperatures ranging from 40° to 63°, with overnight lows between 24° and 47°. The average high for December is 53° 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 Gainesville. See also: January | February | March.