S
M
T
W
T
F
S
27
66°
54°
28
60°
43°
29
61°
42°
30
74°
46°
1
77°
41°
2
77°
44°
3
74°
46°
4
76°
49°
5
71°
44°
6
74°
44°
7
74°
44°
8
77°
43°
9
72°
44°
10
64°
48°
11
49°
41°
12
44°
36°
13
47°
29°
14
59°
33°
15
56°
43°
16
61°
44°
17
60°
42°
18
63°
36°
19
62°
35°
20
60°
36°
21
57°
37°
22
48°
37°
23
50°
36°
24
53°
34°
25
58°
32°
26
59°
30°
27
64°
30°
28
60°
29°
29
61°
30°
30
54°
32°
31
55°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Big Bear Lake
Big Bear Lake's October 2026 forecast shows daily high temperatures ranging from 54° to 55°, with overnight lows between 32° and 39°. The average high for October is 55° with an average low of 36°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Big Bear Lake. See also: November | December | January.