S
M
T
W
T
F
S
29
63°
48°
30
69°
47°
1
68°
49°
2
69°
47°
3
65°
42°
4
56°
38°
5
61°
43°
6
62°
45°
7
63°
42°
8
57°
40°
9
55°
39°
10
54°
36°
11
54°
32°
12
55°
33°
13
57°
35°
14
56°
32°
15
55°
42°
16
58°
41°
17
67°
42°
18
63°
43°
19
62°
32°
20
61°
27°
21
55°
28°
22
52°
33°
23
53°
34°
24
62°
29°
25
62°
28°
26
52°
30°
27
53°
29°
28
52°
29°
29
52°
37°
30
55°
39°
31
66°
29°
1
64°
26°
2
52°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Williams
Williams's December 2026 forecast shows daily high temperatures ranging from 52° to 69°, with overnight lows between 25° and 49°. The average high for December is 59° with an average low of 36°. 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 Williams. See also: January | February | March.
