S
M
T
W
T
F
S
26
93°
63°
27
92°
64°
28
76°
53°
29
71°
49°
30
70°
51°
1
70°
49°
2
82°
43°
3
85°
49°
4
96°
59°
5
73°
50°
6
68°
47°
7
79°
42°
8
91°
51°
9
90°
54°
10
69°
52°
11
81°
45°
12
91°
56°
13
94°
59°
14
96°
68°
15
104°
67°
16
92°
71°
17
90°
70°
18
94°
74°
19
64°
58°
20
72°
60°
21
68°
62°
22
81°
61°
23
78°
62°
24
80°
61°
25
83°
62°
26
85°
65°
27
83°
64°
28
80°
66°
29
83°
65°
30
85°
66°
31
86°
64°
1
87°
63°
2
84°
67°
3
81°
63°
4
81°
60°
5
82°
66°
6
85°
69°
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 64° to 87°, with overnight lows between 58° and 69°. The average high for May is 80° with an average low of 63°. 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.
