S
M
T
W
T
F
S
30
0°
-10°
1
25°
-8°
2
33°
10°
3
15°
-7°
4
34°
13°
5
31°
10°
6
10°
-1°
7
23°
4°
8
35°
16°
9
40°
12°
10
36°
12°
11
39°
-7°
12
-5°
-9°
13
2°
-11°
14
42°
0°
15
44°
26°
16
40°
24°
17
40°
0°
18
22°
-2°
19
34°
-2°
20
11°
-7°
21
26°
2°
22
27°
-7°
23
33°
-5°
24
31°
7°
25
29°
15°
26
31°
19°
27
24°
-12°
28
1°
-16°
29
25°
1°
30
31°
11°
31
33°
14°
1
35°
17°
2
18°
10°
3
16°
5°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Tompkins
Tompkins's December 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for December is ° with an average low of °. 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 Tompkins. See also: January | February | March.
