S
M
T
W
T
F
S
26
84°
51°
27
84°
52°
28
85°
50°
29
83°
50°
30
86°
49°
31
84°
51°
1
85°
51°
2
83°
52°
3
90°
52°
4
91°
53°
5
90°
54°
6
91°
52°
7
91°
53°
8
90°
52°
9
90°
51°
10
89°
50°
11
89°
50°
12
90°
52°
13
90°
52°
14
89°
51°
15
88°
53°
16
87°
52°
17
86°
50°
18
85°
49°
19
84°
50°
20
85°
53°
21
85°
50°
22
86°
49°
23
87°
50°
24
88°
50°
25
88°
53°
26
89°
52°
27
89°
52°
28
88°
53°
29
86°
51°
30
85°
50°
31
84°
49°
1
85°
50°
2
86°
51°
3
88°
51°
4
88°
52°
5
89°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Martinez
Martinez's August 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 49° and 54°. The average high for August is 87° with an average low of 51°. 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 Martinez. See also: September | October | November.
