S
M
T
W
T
F
S
30
26°
4°
1
35°
13°
2
37°
24°
3
29°
14°
4
38°
20°
5
37°
23°
6
39°
28°
7
38°
20°
8
43°
25°
9
55°
29°
10
54°
28°
11
64°
25°
12
25°
10°
13
39°
11°
14
67°
36°
15
58°
34°
16
60°
38°
17
58°
33°
18
34°
24°
19
55°
25°
20
34°
18°
21
42°
20°
22
56°
31°
23
63°
32°
24
68°
38°
25
61°
40°
26
54°
38°
27
47°
4°
28
20°
-5°
29
36°
10°
30
45°
25°
31
55°
34°
1
53°
35°
2
46°
32°
3
50°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Arvada
Arvada's December 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for December is ° with an average low of °. 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 Arvada. See also: January | February | March.
