S
M
T
W
T
F
S
26
77°
59°
27
82°
49°
28
84°
49°
29
82°
58°
30
86°
58°
1
83°
55°
2
84°
60°
3
89°
67°
4
82°
58°
5
74°
56°
6
79°
48°
7
86°
54°
8
90°
56°
9
97°
64°
10
99°
65°
11
101°
68°
12
99°
72°
13
96°
70°
14
95°
64°
15
90°
61°
16
92°
60°
17
88°
60°
18
86°
62°
19
88°
60°
20
88°
58°
21
89°
59°
22
88°
60°
23
87°
59°
24
90°
61°
25
92°
60°
26
93°
59°
27
91°
58°
28
92°
61°
29
95°
61°
30
96°
63°
31
97°
64°
1
95°
60°
2
97°
64°
3
98°
64°
4
98°
63°
5
97°
65°
6
98°
65°
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 87° to 98°, with overnight lows between 58° and 65°. The average high for May is 93° with an average low of 61°. 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.
