S
M
T
W
T
F
S
29
45°
28°
30
44°
34°
1
46°
34°
2
45°
33°
3
47°
34°
4
35°
30°
5
47°
27°
6
53°
26°
7
40°
25°
8
39°
20°
9
38°
18°
10
33°
16°
11
32°
18°
12
33°
20°
13
34°
24°
14
35°
24°
15
39°
27°
16
42°
27°
17
47°
22°
18
47°
21°
19
34°
19°
20
34°
17°
21
37°
18°
22
30°
16°
23
33°
19°
24
36°
28°
25
40°
30°
26
45°
30°
27
47°
27°
28
48°
25°
29
40°
24°
30
38°
24°
31
38°
22°
1
41°
20°
2
37°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Newton
Newton's December 2026 forecast shows daily high temperatures ranging from 30° to 53°, with overnight lows between 16° and 34°. The average high for December is 40° with an average low of 24°. 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 Newton. See also: January | February | March.
