S
M
T
W
T
F
S
29
59°
33°
30
55°
25°
1
44°
23°
2
44°
27°
3
56°
31°
4
50°
31°
5
48°
28°
6
46°
24°
7
42°
20°
8
41°
23°
9
48°
26°
10
49°
29°
11
52°
29°
12
55°
28°
13
52°
29°
14
45°
24°
15
48°
24°
16
49°
20°
17
43°
13°
18
40°
12°
19
41°
13°
20
36°
17°
21
41°
23°
22
44°
17°
23
43°
19°
24
46°
16°
25
42°
20°
26
51°
25°
27
53°
24°
28
48°
21°
29
44°
21°
30
43°
15°
31
42°
12°
1
38°
18°
2
41°
25°
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 36° to 59°, with overnight lows between 12° and 33°. The average high for December is 46° with an average low of 22°. 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.
