S
M
T
W
T
F
S
26
52°
37°
27
52°
36°
28
61°
36°
29
57°
41°
30
46°
37°
1
61°
34°
2
71°
47°
3
75°
47°
4
70°
37°
5
41°
34°
6
48°
40°
7
69°
45°
8
72°
49°
9
74°
48°
10
70°
44°
11
73°
50°
12
79°
52°
13
78°
51°
14
76°
50°
15
70°
41°
16
75°
47°
17
69°
45°
18
75°
47°
19
70°
40°
20
73°
43°
21
67°
40°
22
69°
45°
23
75°
48°
24
66°
44°
25
66°
41°
26
68°
43°
27
69°
47°
28
68°
45°
29
69°
50°
30
69°
48°
31
68°
47°
1
70°
45°
2
74°
47°
3
77°
47°
4
76°
48°
5
73°
48°
6
74°
50°
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 41° to 79°, with overnight lows between 34° and 52°. The average high for May is 70° with an average low of 46°. 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.
