S
M
T
W
T
F
S
26
92°
76°
27
91°
75°
28
91°
78°
29
94°
78°
30
95°
78°
31
94°
77°
1
93°
78°
2
93°
76°
3
94°
76°
4
92°
76°
5
91°
77°
6
90°
78°
7
92°
77°
8
91°
82°
9
91°
83°
10
92°
84°
11
92°
81°
12
94°
79°
13
93°
76°
14
93°
78°
15
93°
78°
16
92°
81°
17
95°
77°
18
100°
80°
19
95°
77°
20
94°
78°
21
95°
78°
22
94°
78°
23
94°
76°
24
91°
77°
25
92°
78°
26
91°
80°
27
94°
79°
28
92°
77°
29
86°
77°
30
91°
80°
31
92°
78°
1
91°
78°
2
91°
76°
3
91°
79°
4
89°
77°
5
91°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Key Largo
Key Largo's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Key Largo. See also: September | October | November.
