S
M
T
W
T
F
S
26
64°
52°
27
64°
52°
28
68°
48°
29
70°
50°
30
66°
52°
1
64°
55°
2
64°
55°
3
66°
54°
4
66°
53°
5
64°
55°
6
73°
53°
7
72°
53°
8
75°
55°
9
82°
56°
10
89°
61°
11
91°
59°
12
87°
57°
13
84°
57°
14
81°
56°
15
80°
56°
16
78°
55°
17
74°
53°
18
77°
56°
19
78°
57°
20
79°
57°
21
77°
55°
22
76°
55°
23
78°
56°
24
79°
57°
25
79°
56°
26
78°
55°
27
73°
56°
28
72°
56°
29
73°
57°
30
73°
56°
31
74°
57°
1
76°
57°
2
79°
58°
3
77°
58°
4
73°
56°
5
73°
56°
6
72°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Alviso
Alviso's May 2026 forecast shows daily high temperatures ranging from 64° to 91°, with overnight lows between 53° and 61°. The average high for May is 77° with an average low of 56°. 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 Alviso. See also: June | July | August.
