S
M
T
W
T
F
S
29
46°
33°
30
46°
31°
1
45°
29°
2
42°
29°
3
44°
28°
4
43°
31°
5
42°
33°
6
47°
39°
7
52°
41°
8
57°
38°
9
58°
34°
10
47°
31°
11
45°
34°
12
45°
31°
13
46°
32°
14
43°
28°
15
47°
26°
16
42°
27°
17
39°
25°
18
40°
25°
19
40°
26°
20
41°
37°
21
50°
31°
22
51°
29°
23
44°
36°
24
49°
35°
25
54°
34°
26
49°
29°
27
45°
28°
28
47°
24°
29
48°
28°
30
38°
19°
31
51°
18°
1
35°
21°
2
33°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Wallingford
Wallingford's December 2026 forecast shows daily high temperatures ranging from 33° to 58°, with overnight lows between 18° and 41°. The average high for December is 45° 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 Wallingford. See also: January | February | March.
