S
M
T
W
T
F
S
26
86°
68°
27
91°
69°
28
93°
68°
29
89°
67°
30
87°
71°
1
88°
70°
2
82°
70°
3
79°
68°
4
82°
71°
5
81°
73°
6
84°
74°
7
85°
72°
8
87°
73°
9
86°
72°
10
87°
74°
11
86°
72°
12
85°
71°
13
87°
72°
14
85°
71°
15
86°
70°
16
82°
70°
17
83°
71°
18
83°
73°
19
85°
73°
20
86°
74°
21
82°
74°
22
83°
71°
23
83°
69°
24
84°
74°
25
84°
74°
26
85°
75°
27
85°
74°
28
84°
74°
29
85°
75°
30
86°
74°
31
85°
75°
1
84°
75°
2
85°
76°
3
85°
76°
4
86°
75°
5
85°
75°
6
85°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Upper Captiva
Upper Captiva's May 2026 forecast shows daily high temperatures ranging from 79° to 87°, with overnight lows between 68° and 76°. The average high for May is 84° with an average low of 73°. 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 Upper Captiva. See also: June | July | August.
