S
M
T
W
T
F
S
26
90°
73°
27
90°
74°
28
86°
68°
29
87°
67°
30
82°
68°
31
71°
61°
1
80°
62°
2
82°
59°
3
82°
65°
4
71°
61°
5
74°
56°
6
78°
52°
7
75°
61°
8
78°
55°
9
85°
65°
10
82°
65°
11
82°
69°
12
83°
68°
13
77°
66°
14
75°
64°
15
81°
69°
16
77°
63°
17
80°
58°
18
82°
63°
19
77°
56°
20
78°
54°
21
78°
65°
22
77°
54°
23
77°
48°
24
N/A
25
79°
60°
26
75°
56°
27
79°
54°
28
82°
63°
29
79°
68°
30
83°
65°
31
79°
59°
1
77°
58°
2
78°
59°
3
77°
57°
4
76°
58°
5
77°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Hayward
Hayward's August 2026 forecast shows daily high temperatures ranging from 75° to 83°, with overnight lows between 54° and 68°. The average high for August is 78° with an average low of 60°. 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.