S
M
T
W
T
F
S
29
44°
25°
30
40°
24°
1
40°
26°
2
41°
34°
3
49°
31°
4
53°
26°
5
44°
27°
6
39°
27°
7
44°
29°
8
47°
31°
9
44°
24°
10
46°
31°
11
47°
34°
12
Hist. Avg.
43°
29°
13
Hist. Avg.
43°
29°
14
Hist. Avg.
43°
28°
15
Hist. Avg.
42°
28°
16
Hist. Avg.
42°
28°
17
Hist. Avg.
42°
28°
18
Hist. Avg.
42°
27°
19
Hist. Avg.
41°
27°
20
Hist. Avg.
41°
27°
21
Hist. Avg.
41°
27°
22
Hist. Avg.
40°
26°
23
Hist. Avg.
40°
26°
24
Hist. Avg.
40°
26°
25
Hist. Avg.
40°
26°
26
Hist. Avg.
40°
26°
27
Hist. Avg.
39°
25°
28
Hist. Avg.
39°
25°
29
Hist. Avg.
39°
25°
30
Hist. Avg.
39°
25°
31
Hist. Avg.
39°
24°
1
Hist. Avg.
38°
24°
2
Hist. Avg.
38°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Nyack
Nyack's December 2026 forecast shows daily high temperatures ranging from 39° to 53°, with overnight lows between 24° and 34°. The average high for December is 44° with an average low of 28°. 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 Nyack. See also: January | February | March.