S
M
T
W
T
F
S
29
35°
27°
30
35°
27°
1
32°
26°
2
32°
25°
3
33°
26°
4
32°
25°
5
32°
24°
6
30°
23°
7
27°
20°
8
32°
24°
9
36°
24°
10
34°
23°
11
35°
24°
12
36°
24°
13
35°
23°
14
34°
24°
15
35°
23°
16
34°
22°
17
34°
19°
18
20°
18°
19
27°
22°
20
33°
18°
21
35°
17°
22
32°
18°
23
34°
12°
24
32°
16°
25
28°
19°
26
31°
17°
27
34°
7°
28
34°
1°
29
18°
0°
30
15°
-1°
31
21°
-3°
1
18°
-1°
2
14°
4°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Cornucopia
Cornucopia's December 2026 forecast shows daily high temperatures ranging from 14° to 36°, with overnight lows between -3° and 27°. The average high for December is 30° 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 Cornucopia. See also: January | February | March.
