S
M
T
W
T
F
S
29
67°
45°
30
70°
36°
1
56°
31°
2
54°
30°
3
57°
40°
4
62°
41°
5
56°
37°
6
55°
33°
7
54°
31°
8
52°
28°
9
52°
28°
10
53°
33°
11
57°
33°
12
62°
38°
13
59°
40°
14
57°
30°
15
55°
28°
16
53°
31°
17
55°
28°
18
52°
25°
19
51°
26°
20
52°
27°
21
54°
28°
22
54°
28°
23
53°
25°
24
51°
25°
25
52°
29°
26
52°
32°
27
58°
29°
28
56°
27°
29
53°
26°
30
51°
25°
31
52°
24°
1
51°
26°
2
53°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in May
May's December 2026 forecast shows daily high temperatures ranging from 51° to 70°, with overnight lows between 24° and 45°. The average high for December is 55° with an average low of 31°. 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 May. See also: January | February | March.
