S
M
T
W
T
F
S
28
90°
82°
29
91°
84°
30
91°
82°
1
90°
78°
2
89°
82°
3
90°
79°
4
90°
84°
5
90°
85°
6
91°
83°
7
92°
84°
8
91°
85°
9
92°
84°
10
91°
83°
11
90°
85°
12
93°
84°
13
94°
83°
14
93°
82°
15
91°
82°
16
93°
82°
17
91°
81°
18
91°
83°
19
92°
82°
20
88°
83°
21
88°
83°
22
89°
82°
23
88°
83°
24
88°
83°
25
88°
82°
26
90°
83°
27
89°
83°
28
89°
82°
29
88°
83°
30
88°
83°
31
89°
82°
1
90°
82°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Key West
Key West's July 2026 forecast shows daily high temperatures ranging from 88° to 94°, with overnight lows between 81° and 85°. The average high for July is 90° with an average low of 83°. 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 West. See also: August | September | October.