S
M
T
W
T
F
S
26
80°
59°
27
84°
56°
28
83°
65°
29
84°
53°
30
86°
49°
31
91°
54°
1
91°
52°
2
90°
54°
3
90°
51°
4
86°
53°
5
85°
55°
6
84°
57°
7
83°
56°
8
82°
55°
9
78°
54°
10
77°
55°
11
79°
54°
12
78°
51°
13
78°
52°
14
76°
53°
15
75°
52°
16
77°
52°
17
79°
53°
18
80°
53°
19
79°
52°
20
80°
53°
21
80°
53°
22
79°
52°
23
78°
52°
24
80°
53°
25
80°
52°
26
81°
53°
27
80°
52°
28
80°
52°
29
79°
51°
30
78°
51°
31
78°
50°
1
79°
51°
2
78°
51°
3
72°
47°
4
73°
50°
5
77°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Big Bear
Big Bear's August 2026 forecast shows daily high temperatures ranging from 72° to 91°, with overnight lows between 47° and 57°. The average high for August is 80° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Big Bear. See also: September | October | November.
