S
M
T
W
T
F
S
29
55°
44°
30
59°
44°
1
58°
45°
2
59°
44°
3
61°
43°
4
49°
42°
5
55°
42°
6
56°
41°
7
55°
39°
8
48°
37°
9
46°
34°
10
45°
35°
11
45°
35°
12
46°
34°
13
47°
34°
14
44°
30°
15
45°
31°
16
46°
39°
17
55°
38°
18
53°
39°
19
56°
33°
20
54°
24°
21
48°
25°
22
41°
28°
23
42°
35°
24
47°
32°
25
56°
32°
26
46°
27°
27
45°
28°
28
42°
28°
29
44°
31°
30
48°
38°
31
56°
29°
1
57°
23°
2
47°
19°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Delmar
Delmar's December 2026 forecast shows daily high temperatures ranging from 41° to 61°, with overnight lows between 19° and 45°. The average high for December is 50° with an average low of 34°. 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 Delmar. See also: January | February | March.
