S
M
T
W
T
F
S
27
75°
46°
28
76°
46°
29
74°
43°
30
71°
39°
1
69°
38°
2
64°
37°
3
62°
34°
4
64°
33°
5
63°
33°
6
61°
37°
7
63°
34°
8
65°
38°
9
68°
37°
10
70°
34°
11
64°
33°
12
61°
29°
13
58°
30°
14
58°
32°
15
60°
36°
16
64°
37°
17
66°
36°
18
67°
38°
19
67°
39°
20
66°
39°
21
66°
40°
22
68°
37°
23
68°
35°
24
61°
35°
25
60°
33°
26
59°
35°
27
56°
36°
28
59°
36°
29
64°
35°
30
59°
29°
31
59°
29°
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 56° to 76°, with overnight lows between 29° and 46°. The average high for October is 64° 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.