S
M
T
W
T
F
S
29
60°
44°
30
61°
44°
1
63°
40°
2
50°
34°
3
48°
31°
4
53°
37°
5
57°
42°
6
50°
36°
7
47°
31°
8
45°
27°
9
45°
28°
10
46°
30°
11
47°
31°
12
49°
34°
13
50°
31°
14
48°
28°
15
47°
35°
16
47°
37°
17
49°
32°
18
53°
30°
19
47°
26°
20
46°
25°
21
44°
26°
22
45°
29°
23
49°
29°
24
44°
26°
25
44°
26°
26
45°
25°
27
45°
25°
28
44°
26°
29
44°
28°
30
46°
27°
31
44°
25°
1
43°
21°
2
42°
21°
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 42° to 63°, with overnight lows between 21° and 44°. The average high for December is 48° with an average low of 30°. 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.
