S
M
T
W
T
F
S
29
53°
35°
30
53°
26°
1
50°
25°
2
43°
23°
3
40°
22°
4
37°
29°
5
44°
27°
6
49°
22°
7
40°
21°
8
36°
24°
9
37°
23°
10
36°
20°
11
35°
19°
12
36°
20°
13
37°
17°
14
35°
16°
15
32°
15°
16
32°
17°
17
Hist. Avg.
41°
24°
18
Hist. Avg.
40°
23°
19
Hist. Avg.
40°
23°
20
Hist. Avg.
40°
23°
21
Hist. Avg.
40°
23°
22
Hist. Avg.
40°
22°
23
Hist. Avg.
39°
22°
24
Hist. Avg.
39°
22°
25
Hist. Avg.
39°
22°
26
Hist. Avg.
39°
22°
27
Hist. Avg.
38°
21°
28
Hist. Avg.
38°
21°
29
Hist. Avg.
38°
21°
30
Hist. Avg.
38°
21°
31
Hist. Avg.
38°
20°
1
Hist. Avg.
38°
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 Mashapaug
Mashapaug's December 2026 forecast shows daily high temperatures ranging from 32° to 53°, with overnight lows between 15° and 35°. The average high for December is 40° with an average low of 22°. 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 Mashapaug. See also: January | February | March.
