S
M
T
W
T
F
S
29
48°
33°
30
44°
37°
1
45°
36°
2
46°
37°
3
48°
36°
4
37°
32°
5
43°
31°
6
53°
29°
7
42°
27°
8
41°
23°
9
38°
22°
10
35°
20°
11
34°
21°
12
35°
22°
13
35°
25°
14
37°
30°
15
42°
31°
16
45°
29°
17
49°
23°
18
48°
24°
19
36°
21°
20
36°
19°
21
37°
21°
22
33°
19°
23
34°
23°
24
35°
28°
25
41°
32°
26
46°
34°
27
48°
31°
28
49°
29°
29
43°
27°
30
42°
28°
31
41°
26°
1
43°
23°
2
39°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Guilford
Guilford's December 2026 forecast shows daily high temperatures ranging from 33° to 53°, with overnight lows between 19° and 37°. The average high for December is 41° with an average low of 27°. 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 Guilford. See also: January | February | March.