S
M
T
W
T
F
S
26
81°
70°
27
86°
72°
28
82°
64°
29
82°
70°
30
81°
73°
1
82°
72°
2
82°
68°
3
79°
63°
4
82°
63°
5
84°
66°
6
86°
70°
7
86°
70°
8
84°
73°
9
90°
72°
10
88°
77°
11
88°
77°
12
84°
72°
13
82°
72°
14
82°
72°
15
89°
73°
16
89°
74°
17
90°
74°
18
88°
73°
19
87°
72°
20
89°
72°
21
91°
73°
22
90°
74°
23
89°
75°
24
90°
73°
25
88°
73°
26
88°
72°
27
89°
71°
28
90°
73°
29
89°
74°
30
89°
74°
31
88°
73°
1
87°
74°
2
86°
75°
3
87°
75°
4
87°
74°
5
88°
75°
6
88°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Key Vista
Key Vista's May 2026 forecast shows daily high temperatures ranging from 86° to 91°, with overnight lows between 71° and 75°. The average high for May is 89° with an average low of 74°. 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 Key Vista. See also: June | July | August.
