S
M
T
W
T
F
S
26
100°
66°
27
97°
61°
28
99°
62°
29
91°
65°
30
101°
62°
31
99°
62°
1
97°
61°
2
106°
60°
3
105°
62°
4
100°
59°
5
98°
60°
6
93°
60°
7
97°
62°
8
96°
62°
9
92°
60°
10
93°
61°
11
89°
59°
12
90°
60°
13
91°
61°
14
90°
60°
15
86°
60°
16
86°
61°
17
87°
60°
18
88°
61°
19
86°
59°
20
86°
59°
21
90°
61°
22
90°
60°
23
88°
62°
24
90°
62°
25
91°
61°
26
91°
63°
27
90°
63°
28
91°
62°
29
89°
62°
30
88°
63°
31
89°
63°
1
88°
60°
2
89°
61°
3
91°
61°
4
86°
60°
5
86°
61°
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 86° to 106°, with overnight lows between 59° and 63°. The average high for August is 91° with an average low of 61°. 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.
