S
M
T
W
T
F
S
26
67°
53°
27
67°
52°
28
71°
44°
29
71°
46°
30
70°
46°
1
67°
50°
2
65°
53°
3
66°
55°
4
71°
47°
5
65°
53°
6
69°
52°
7
68°
56°
8
66°
53°
9
69°
51°
10
67°
52°
11
82°
53°
12
67°
56°
13
71°
51°
14
75°
48°
15
80°
48°
16
69°
50°
17
75°
47°
18
83°
65°
19
89°
49°
20
81°
52°
21
75°
50°
22
73°
55°
23
72°
51°
24
72°
51°
25
74°
56°
26
69°
53°
27
73°
50°
28
70°
52°
29
68°
53°
30
70°
49°
31
82°
50°
1
83°
52°
2
77°
53°
3
76°
54°
4
77°
52°
5
78°
51°
6
73°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Palo Alto
Palo Alto's May 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 49° and 54°. The average high for May is 75° 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 Palo Alto. See also: June | July | August.
