S
M
T
W
T
F
S
26
61°
46°
27
63°
43°
28
72°
43°
29
77°
46°
30
79°
46°
1
79°
52°
2
68°
52°
3
64°
50°
4
68°
51°
5
68°
50°
6
75°
50°
7
78°
47°
8
81°
49°
9
86°
51°
10
88°
53°
11
86°
52°
12
81°
52°
13
82°
50°
14
78°
51°
15
77°
50°
16
79°
49°
17
80°
52°
18
80°
53°
19
81°
54°
20
82°
54°
21
80°
52°
22
80°
52°
23
81°
53°
24
82°
54°
25
82°
53°
26
81°
52°
27
77°
52°
28
75°
51°
29
76°
53°
30
76°
52°
31
77°
54°
1
79°
54°
2
82°
53°
3
80°
54°
4
76°
53°
5
76°
52°
6
75°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Gilroy
Gilroy's May 2026 forecast shows daily high temperatures ranging from 64° to 88°, with overnight lows between 47° and 54°. The average high for May is 79° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Gilroy. See also: June | July | August.
