S
M
T
W
T
F
S
26
93°
77°
27
94°
75°
28
89°
78°
29
91°
77°
30
89°
78°
31
93°
78°
1
93°
77°
2
92°
78°
3
91°
78°
4
91°
77°
5
92°
78°
6
90°
78°
7
89°
77°
8
90°
77°
9
92°
78°
10
93°
78°
11
92°
77°
12
90°
78°
13
90°
77°
14
89°
77°
15
90°
76°
16
88°
77°
17
88°
76°
18
89°
77°
19
88°
77°
20
88°
76°
21
89°
77°
22
90°
77°
23
89°
78°
24
91°
75°
25
92°
75°
26
91°
74°
27
90°
75°
28
91°
74°
29
90°
75°
30
91°
75°
31
92°
76°
1
91°
76°
2
91°
75°
3
90°
76°
4
90°
76°
5
89°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Brentwood
Brentwood's August 2026 forecast shows daily high temperatures ranging from 88° to 94°, with overnight lows between 74° and 78°. The average high for August is 91° with an average low of 77°. 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 Brentwood. See also: September | October | November.
