S
M
T
W
T
F
S
29
40°
21°
30
36°
20°
1
36°
22°
2
37°
30°
3
45°
28°
4
49°
22°
5
40°
23°
6
35°
24°
7
40°
25°
8
42°
28°
9
40°
20°
10
42°
27°
11
43°
30°
12
Hist. Avg.
46°
32°
13
Hist. Avg.
46°
31°
14
Hist. Avg.
45°
31°
15
Hist. Avg.
45°
31°
16
Hist. Avg.
45°
31°
17
Hist. Avg.
44°
30°
18
Hist. Avg.
44°
30°
19
Hist. Avg.
44°
30°
20
Hist. Avg.
44°
30°
21
Hist. Avg.
43°
30°
22
Hist. Avg.
43°
29°
23
Hist. Avg.
43°
29°
24
Hist. Avg.
42°
29°
25
Hist. Avg.
42°
29°
26
Hist. Avg.
42°
28°
27
Hist. Avg.
42°
28°
28
Hist. Avg.
42°
28°
29
Hist. Avg.
41°
28°
30
Hist. Avg.
41°
28°
31
Hist. Avg.
41°
28°
1
Hist. Avg.
41°
27°
2
Hist. Avg.
41°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Monsey
Monsey's December 2026 forecast shows daily high temperatures ranging from 35° to 49°, with overnight lows between 20° and 30°. The average high for December is 40° with an average low of 25°. 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 Monsey. See also: January | February | March.