S
M
T
W
T
F
S
28
88°
77°
29
90°
77°
30
89°
76°
1
87°
75°
2
87°
77°
3
88°
76°
4
90°
74°
5
90°
74°
6
90°
74°
7
90°
74°
8
90°
78°
9
89°
77°
10
90°
77°
11
89°
72°
12
93°
74°
13
96°
73°
14
95°
73°
15
95°
74°
16
95°
76°
17
94°
78°
18
92°
77°
19
91°
78°
20
93°
77°
21
92°
78°
22
92°
77°
23
91°
76°
24
90°
75°
25
89°
76°
26
86°
76°
27
89°
78°
28
89°
78°
29
91°
77°
30
91°
78°
31
90°
78°
1
91°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Port St. Lucie
Port St. Lucie's July 2026 forecast shows daily high temperatures ranging from 86° to 96°, with overnight lows between 73° and 78°. The average high for July is 92° with an average low of 76°. 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 Port St. Lucie. See also: August | September | October.