S
M
T
W
T
F
S
29
56°
41°
30
58°
39°
1
56°
31°
2
54°
27°
3
44°
29°
4
45°
36°
5
52°
31°
6
47°
28°
7
44°
36°
8
51°
32°
9
52°
29°
10
44°
24°
11
41°
21°
12
38°
22°
13
37°
23°
14
39°
19°
15
38°
20°
16
35°
21°
17
37°
20°
18
42°
19°
19
39°
20°
20
36°
31°
21
41°
32°
22
42°
30°
23
42°
30°
24
39°
32°
25
50°
31°
26
50°
28°
27
36°
28°
28
35°
26°
29
37°
32°
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 Tappan
Tappan's December 2026 forecast shows daily high temperatures ranging from 35° to 58°, with overnight lows between 19° and 41°. 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 Tappan. See also: January | February | March.
