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°
50°
5
63°
54°
6
70°
55°
7
64°
54°
8
64°
54°
9
68°
54°
10
66°
54°
11
77°
54°
12
71°
55°
13
71°
51°
14
76°
50°
15
75°
52°
16
70°
47°
17
72°
53°
18
79°
54°
19
78°
57°
20
75°
55°
21
78°
57°
22
76°
57°
23
75°
55°
24
77°
56°
25
73°
53°
26
68°
50°
27
68°
50°
28
72°
53°
29
69°
54°
30
69°
54°
31
70°
55°
1
76°
56°
2
77°
56°
3
74°
54°
4
72°
52°
5
77°
58°
6
77°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Los Altos
Los Altos's May 2026 forecast shows daily high temperatures ranging from 68° to 79°, with overnight lows between 47° and 58°. The average high for May is 74° with an average low of 54°. 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 Los Altos. See also: June | July | August.
