S
M
T
W
T
F
S
29
43°
23°
30
40°
22°
1
40°
23°
2
39°
32°
3
45°
31°
4
53°
26°
5
44°
25°
6
39°
26°
7
44°
28°
8
46°
30°
9
45°
24°
10
46°
30°
11
47°
33°
12
Hist. Avg.
41°
25°
13
Hist. Avg.
41°
24°
14
Hist. Avg.
41°
24°
15
Hist. Avg.
40°
24°
16
Hist. Avg.
40°
24°
17
Hist. Avg.
40°
24°
18
Hist. Avg.
40°
23°
19
Hist. Avg.
39°
23°
20
Hist. Avg.
39°
23°
21
Hist. Avg.
39°
23°
22
Hist. Avg.
39°
22°
23
Hist. Avg.
38°
22°
24
Hist. Avg.
38°
22°
25
Hist. Avg.
38°
22°
26
Hist. Avg.
38°
22°
27
Hist. Avg.
38°
21°
28
Hist. Avg.
38°
21°
29
Hist. Avg.
37°
21°
30
Hist. Avg.
37°
21°
31
Hist. Avg.
37°
20°
1
Hist. Avg.
37°
20°
2
Hist. Avg.
37°
20°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Marlboro
Marlboro's December 2026 forecast shows daily high temperatures ranging from 39° to 53°, with overnight lows between 22° and 33°. The average high for December is 44° with an average low of 27°. 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 Marlboro. See also: January | February | March.