S
M
T
W
T
F
S
29
38°
23°
30
36°
22°
1
36°
20°
2
35°
20°
3
36°
24°
4
39°
22°
5
39°
23°
6
37°
28°
7
35°
30°
8
36°
29°
9
36°
21°
10
33°
20°
11
45°
24°
12
43°
27°
13
37°
24°
14
44°
22°
15
37°
16°
16
34°
17°
17
31°
20°
18
33°
23°
19
38°
24°
20
38°
26°
21
40°
26°
22
42°
25°
23
42°
27°
24
41°
29°
25
45°
20°
26
45°
20°
27
43°
17°
28
31°
19°
29
32°
23°
30
40°
23°
31
40°
25°
1
41°
27°
2
43°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in New Hartford
New Hartford's December 2026 forecast shows daily high temperatures ranging from 31° to 45°, with overnight lows between 16° and 30°. The average high for December is 38° with an average low of 23°. 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 New Hartford. See also: January | February | March.
