S
M
T
W
T
F
S
29
48°
34°
30
51°
39°
1
53°
38°
2
52°
38°
3
53°
37°
4
48°
34°
5
50°
31°
6
49°
36°
7
51°
34°
8
43°
30°
9
41°
28°
10
40°
27°
11
38°
31°
12
40°
30°
13
42°
28°
14
40°
25°
15
40°
26°
16
42°
29°
17
41°
28°
18
40°
32°
19
48°
30°
20
46°
22°
21
40°
23°
22
37°
23°
23
35°
27°
24
38°
26°
25
44°
25°
26
46°
17°
27
37°
17°
28
33°
19°
29
35°
19°
30
35°
28°
31
40°
27°
1
49°
20°
2
45°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Demarest
Demarest's December 2026 forecast shows daily high temperatures ranging from 33° to 53°, with overnight lows between 17° and 39°. The average high for December is 43° 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 Demarest. See also: January | February | March.
