S
M
T
W
T
F
S
26
82°
59°
27
77°
58°
28
77°
54°
29
81°
60°
30
84°
60°
31
84°
59°
1
76°
57°
2
81°
58°
3
77°
50°
4
75°
58°
5
79°
56°
6
77°
54°
7
80°
52°
8
79°
50°
9
80°
57°
10
81°
58°
11
76°
56°
12
81°
51°
13
75°
50°
14
76°
50°
15
79°
54°
16
77°
53°
17
75°
49°
18
74°
51°
19
76°
55°
20
76°
57°
21
82°
58°
22
79°
59°
23
82°
59°
24
81°
56°
25
83°
55°
26
79°
49°
27
76°
56°
28
78°
54°
29
77°
49°
30
73°
46°
31
72°
48°
1
71°
46°
2
71°
47°
3
73°
47°
4
72°
45°
5
70°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Hayward
Hayward's August 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 45° and 60°. The average high for August is 77° with an average low of 53°. 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 Hayward. See also: September | October | November.