S
M
T
W
T
F
S
26
59°
41°
27
69°
38°
28
64°
39°
29
64°
48°
30
61°
48°
1
65°
42°
2
61°
46°
3
61°
44°
4
74°
46°
5
84°
51°
6
70°
55°
7
64°
48°
8
62°
43°
9
65°
49°
10
74°
50°
11
62°
48°
12
68°
40°
13
73°
51°
14
67°
50°
15
67°
49°
16
82°
46°
17
89°
60°
18
93°
63°
19
96°
72°
20
92°
57°
21
66°
50°
22
64°
51°
23
54°
50°
24
66°
53°
25
71°
55°
26
72°
57°
27
78°
58°
28
75°
57°
29
75°
58°
30
79°
61°
31
83°
64°
1
86°
57°
2
73°
55°
3
70°
56°
4
72°
59°
5
77°
58°
6
77°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mountain View
Mountain View's May 2026 forecast shows daily high temperatures ranging from 54° to 96°, with overnight lows between 50° and 72°. The average high for May is 75° 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 May weather will actually feel in Mountain View. See also: June | July | August.
