S
M
T
W
T
F
S
29
79°
61°
30
82°
52°
1
80°
51°
2
69°
54°
3
69°
60°
4
72°
62°
5
75°
61°
6
78°
62°
7
77°
54°
8
79°
51°
9
73°
54°
10
71°
60°
11
77°
57°
12
76°
59°
13
71°
62°
14
79°
59°
15
80°
57°
16
73°
58°
17
71°
58°
18
75°
56°
19
70°
55°
20
71°
61°
21
76°
59°
22
77°
54°
23
77°
59°
24
73°
58°
25
75°
52°
26
71°
53°
27
68°
57°
28
69°
58°
29
72°
49°
30
77°
48°
31
73°
50°
1
65°
56°
2
67°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Westlake
Westlake's December 2026 forecast shows daily high temperatures ranging from 65° to 82°, with overnight lows between 48° and 62°. The average high for December is 74° with an average low of 56°. 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 Westlake. See also: January | February | March.
