S
M
T
W
T
F
S
26
82°
55°
27
84°
54°
28
88°
54°
29
86°
55°
30
93°
55°
31
95°
54°
1
93°
55°
2
97°
55°
3
88°
55°
4
88°
55°
5
86°
57°
6
86°
57°
7
91°
59°
8
91°
57°
9
91°
55°
10
90°
55°
11
81°
57°
12
79°
59°
13
72°
59°
14
77°
58°
15
80°
57°
16
84°
56°
17
85°
57°
18
87°
56°
19
86°
55°
20
87°
56°
21
87°
55°
22
88°
56°
23
89°
57°
24
87°
54°
25
83°
55°
26
86°
56°
27
87°
57°
28
87°
58°
29
84°
57°
30
87°
57°
31
87°
56°
1
88°
57°
2
88°
57°
3
82°
56°
4
83°
57°
5
85°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Gilroy
Gilroy's August 2026 forecast shows daily high temperatures ranging from 72° to 89°, with overnight lows between 54° and 59°. The average high for August is 84° with an average low of 57°. 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 Gilroy. See also: September | October | November.
