S
M
T
W
T
F
S
29
43°
30°
30
44°
27°
1
42°
26°
2
40°
27°
3
41°
26°
4
40°
28°
5
39°
31°
6
43°
37°
7
47°
40°
8
54°
35°
9
55°
33°
10
44°
29°
11
42°
31°
12
42°
28°
13
43°
29°
14
40°
25°
15
42°
24°
16
40°
24°
17
36°
23°
18
37°
22°
19
36°
21°
20
37°
34°
21
45°
29°
22
47°
26°
23
41°
32°
24
41°
33°
25
49°
30°
26
46°
23°
27
41°
25°
28
42°
21°
29
41°
22°
30
33°
17°
31
48°
16°
1
34°
20°
2
35°
19°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Elmsford
Elmsford's December 2026 forecast shows daily high temperatures ranging from 33° to 55°, with overnight lows between 16° and 40°. The average high for December is 42° 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 Elmsford. See also: January | February | March.
