S
M
T
W
T
F
S
29
55°
38°
30
57°
39°
1
58°
41°
2
59°
40°
3
55°
37°
4
57°
39°
5
60°
41°
6
56°
37°
7
54°
39°
8
53°
34°
9
51°
35°
10
52°
36°
11
55°
36°
12
56°
41°
13
56°
41°
14
55°
35°
15
52°
35°
16
53°
33°
17
53°
35°
18
55°
37°
19
56°
39°
20
58°
41°
21
52°
31°
22
51°
33°
23
51°
35°
24
53°
34°
25
54°
32°
26
53°
39°
27
53°
35°
28
55°
35°
29
Hist. Avg.
53°
39°
30
Hist. Avg.
53°
39°
31
Hist. Avg.
53°
39°
1
Hist. Avg.
53°
40°
2
Hist. Avg.
53°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Boulder City
Boulder City's December 2026 forecast shows daily high temperatures ranging from 51° to 60°, with overnight lows between 31° and 41°. The average high for December is 55° with an average low of 37°. 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 Boulder City. See also: January | February | March.
