S
M
T
W
T
F
S
28
89°
80°
29
89°
78°
30
88°
79°
1
88°
78°
2
89°
77°
3
88°
77°
4
87°
78°
5
89°
78°
6
90°
79°
7
88°
78°
8
89°
78°
9
89°
79°
10
90°
78°
11
90°
77°
12
89°
78°
13
88°
79°
14
89°
80°
15
88°
79°
16
89°
80°
17
90°
80°
18
90°
79°
19
89°
80°
20
90°
80°
21
90°
78°
22
89°
80°
23
89°
80°
24
90°
79°
25
91°
79°
26
90°
80°
27
89°
80°
28
90°
79°
29
89°
80°
30
90°
79°
31
91°
80°
1
90°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Key Largo
Key Largo's July 2026 forecast shows daily high temperatures ranging from 87° to 91°, with overnight lows between 77° and 80°. The average high for July is 89° with an average low of 79°. 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 Key Largo. See also: August | September | October.
