S
M
T
W
T
F
S
29
59°
32°
30
57°
23°
1
45°
20°
2
46°
25°
3
54°
32°
4
56°
30°
5
45°
24°
6
45°
22°
7
43°
18°
8
42°
19°
9
45°
27°
10
50°
29°
11
50°
29°
12
56°
28°
13
52°
29°
14
49°
21°
15
46°
23°
16
49°
19°
17
45°
15°
18
42°
15°
19
44°
16°
20
41°
17°
21
44°
23°
22
44°
18°
23
43°
20°
24
49°
16°
25
43°
19°
26
50°
22°
27
54°
23°
28
50°
16°
29
44°
21°
30
44°
15°
31
45°
15°
1
43°
19°
2
45°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Happy
Happy's December 2026 forecast shows daily high temperatures ranging from 41° to 59°, with overnight lows between 15° and 32°. The average high for December is 47° 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 Happy. See also: January | February | March.
