S
M
T
W
T
F
S
29
43°
26°
30
45°
30°
1
47°
29°
2
45°
29°
3
47°
27°
4
44°
25°
5
44°
26°
6
42°
27°
7
44°
26°
8
37°
24°
9
34°
24°
10
35°
23°
11
34°
24°
12
35°
21°
13
36°
17°
14
37°
15°
15
33°
14°
16
31°
15°
17
33°
16°
18
32°
21°
19
34°
20°
20
37°
18°
21
34°
15°
22
32°
15°
23
30°
8°
24
32°
16°
25
28°
12°
26
33°
5°
27
28°
3°
28
23°
4°
29
26°
1°
30
24°
7°
31
26°
18°
1
39°
12°
2
38°
7°
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 23° to 47°, with overnight lows between 1° and 30°. The average high for December is 35° with an average low of 18°. 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.
