S
M
T
W
T
F
S
26
87°
69°
27
87°
70°
28
85°
70°
29
85°
70°
30
87°
70°
31
90°
71°
1
90°
69°
2
90°
70°
3
88°
70°
4
84°
70°
5
82°
67°
6
88°
68°
7
88°
70°
8
92°
69°
9
92°
70°
10
89°
72°
11
89°
67°
12
86°
67°
13
84°
68°
14
84°
65°
15
86°
66°
16
90°
67°
17
90°
66°
18
88°
68°
19
89°
66°
20
87°
68°
21
88°
68°
22
90°
67°
23
92°
69°
24
89°
65°
25
89°
67°
26
91°
69°
27
91°
69°
28
90°
68°
29
90°
69°
30
91°
68°
31
90°
67°
1
90°
67°
2
89°
65°
3
88°
65°
4
88°
66°
5
89°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Brea Chem
Brea Chem's August 2026 forecast shows daily high temperatures ranging from 84° to 92°, with overnight lows between 65° and 69°. The average high for August is 89° with an average low of 67°. 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 Brea Chem. See also: September | October | November.
