S
M
T
W
T
F
S
29
44°
25°
30
44°
24°
1
43°
27°
2
43°
20°
3
41°
19°
4
39°
23°
5
40°
29°
6
45°
35°
7
52°
28°
8
56°
25°
9
53°
24°
10
38°
23°
11
41°
21°
12
44°
23°
13
40°
25°
14
39°
22°
15
37°
18°
16
36°
19°
17
36°
21°
18
37°
26°
19
39°
29°
20
42°
30°
21
51°
23°
22
51°
24°
23
40°
30°
24
48°
28°
25
51°
27°
26
46°
27°
27
42°
17°
28
45°
15°
29
34°
13°
30
35°
9°
31
34°
10°
1
27°
11°
2
31°
14°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Corning
Corning's December 2026 forecast shows daily high temperatures ranging from 27° to 56°, with overnight lows between 9° and 35°. The average high for December is 42° 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 Corning. See also: January | February | March.