S
M
T
W
T
F
S
29
68°
53°
30
70°
52°
1
67°
48°
2
67°
44°
3
68°
51°
4
72°
53°
5
74°
53°
6
73°
54°
7
73°
54°
8
75°
53°
9
73°
53°
10
74°
54°
11
72°
48°
12
66°
42°
13
63°
41°
14
64°
42°
15
63°
41°
16
63°
41°
17
64°
46°
18
68°
50°
19
71°
51°
20
73°
47°
21
65°
41°
22
63°
40°
23
66°
50°
24
68°
45°
25
62°
46°
26
68°
46°
27
66°
51°
28
74°
40°
29
75°
39°
30
62°
40°
31
62°
38°
1
63°
37°
2
61°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Williston
Williston's December 2026 forecast shows daily high temperatures ranging from 61° to 75°, with overnight lows between 37° and 54°. The average high for December is 68° with an average low of 46°. 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 Williston. See also: January | February | March.
