S
M
T
W
T
F
S
26
83°
74°
27
85°
74°
28
85°
73°
29
82°
74°
30
82°
73°
1
81°
73°
2
82°
75°
3
82°
75°
4
83°
74°
5
83°
75°
6
84°
74°
7
83°
75°
8
83°
75°
9
84°
74°
10
85°
76°
11
87°
76°
12
86°
75°
13
86°
76°
14
85°
76°
15
86°
75°
16
86°
77°
17
87°
77°
18
86°
76°
19
86°
77°
20
85°
77°
21
85°
76°
22
85°
74°
23
86°
75°
24
87°
75°
25
88°
76°
26
87°
77°
27
88°
76°
28
88°
74°
29
87°
74°
30
86°
76°
31
87°
77°
1
87°
77°
2
88°
76°
3
87°
76°
4
87°
77°
5
86°
77°
6
86°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in North Key Largo
North Key Largo's May 2026 forecast shows daily high temperatures ranging from 81° to 88°, with overnight lows between 73° and 78°. The average high for May is 85° 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 May weather will actually feel in North Key Largo. See also: June | July | August.
