S
M
T
W
T
F
S
29
52°
29°
30
53°
29°
1
53°
28°
2
48°
29°
3
50°
23°
4
44°
22°
5
43°
23°
6
44°
23°
7
46°
25°
8
45°
21°
9
42°
27°
10
44°
22°
11
43°
17°
12
42°
17°
13
41°
18°
14
42°
20°
15
43°
19°
16
42°
19°
17
42°
20°
18
43°
20°
19
43°
21°
20
44°
21°
21
46°
25°
22
46°
28°
23
44°
19°
24
47°
18°
25
41°
19°
26
41°
20°
27
42°
21°
28
44°
22°
29
46°
22°
30
46°
24°
31
47°
23°
1
46°
20°
2
47°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Big Bear Lake
Big Bear Lake's December 2026 forecast shows daily high temperatures ranging from 41° to 53°, with overnight lows between 17° and 29°. The average high for December is 45° with an average low of 22°. 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 Big Bear Lake. See also: January | February | March.
