S
M
T
W
T
F
S
31
85°
76°
1
82°
76°
2
83°
75°
3
85°
76°
4
85°
76°
5
86°
75°
6
86°
76°
7
85°
76°
8
83°
75°
9
85°
76°
10
86°
76°
11
84°
77°
12
88°
74°
13
88°
73°
14
89°
74°
15
88°
74°
16
87°
75°
17
88°
76°
18
88°
74°
19
87°
74°
20
87°
75°
21
88°
76°
22
89°
77°
23
88°
76°
24
89°
76°
25
89°
75°
26
88°
75°
27
90°
76°
28
88°
75°
29
89°
75°
30
88°
76°
1
88°
77°
2
89°
76°
3
88°
77°
4
88°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Caribbean Key
Caribbean Key's June 2026 forecast shows daily high temperatures ranging from 82° to 90°, with overnight lows between 73° and 77°. The average high for June is 87° with an average low of 75°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Caribbean Key. See also: July | August | September.