S
M
T
W
T
F
S
29
48°
30°
30
46°
24°
1
35°
17°
2
33°
14°
3
37°
28°
4
40°
27°
5
36°
28°
6
35°
21°
7
32°
17°
8
31°
20°
9
35°
20°
10
39°
26°
11
39°
26°
12
43°
24°
13
41°
26°
14
37°
24°
15
38°
22°
16
39°
21°
17
36°
17°
18
34°
14°
19
33°
10°
20
29°
8°
21
26°
22°
22
36°
19°
23
36°
17°
24
35°
7°
25
30°
18°
26
30°
23°
27
36°
21°
28
36°
19°
29
33°
12°
30
32°
16°
31
30°
5°
1
30°
2°
2
24°
11°
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 24° to 48°, with overnight lows between 2° and 30°. The average high for December is 35° with an average low of 19°. 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.