S
M
T
W
T
F
S
28
90°
76°
29
89°
77°
30
91°
78°
1
90°
76°
2
89°
77°
3
89°
78°
4
90°
78°
5
90°
77°
6
89°
79°
7
90°
78°
8
91°
78°
9
91°
77°
10
90°
78°
11
92°
76°
12
91°
77°
13
92°
78°
14
91°
77°
15
91°
77°
16
90°
76°
17
90°
76°
18
90°
78°
19
Hist. Avg.
89°
77°
20
Hist. Avg.
89°
77°
21
Hist. Avg.
89°
77°
22
Hist. Avg.
89°
77°
23
Hist. Avg.
89°
77°
24
Hist. Avg.
90°
77°
25
Hist. Avg.
90°
77°
26
Hist. Avg.
90°
77°
27
Hist. Avg.
90°
77°
28
Hist. Avg.
90°
77°
29
Hist. Avg.
90°
77°
30
Hist. Avg.
90°
77°
31
Hist. Avg.
90°
77°
1
Hist. Avg.
90°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Caribbean Key
Caribbean Key's July 2026 forecast shows daily high temperatures ranging from 89° to 92°, with overnight lows between 76° and 79°. The average high for July is 90° with an average low of 77°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Caribbean Key. See also: August | September | October.