S
M
T
W
T
F
S
28
95°
79°
29
97°
77°
30
90°
77°
1
86°
73°
2
88°
72°
3
90°
72°
4
91°
72°
5
93°
77°
6
93°
82°
7
91°
81°
8
95°
81°
9
95°
77°
10
95°
73°
11
100°
75°
12
97°
75°
13
90°
73°
14
85°
75°
15
86°
76°
16
90°
78°
17
92°
79°
18
90°
78°
19
92°
79°
20
93°
78°
21
91°
77°
22
89°
76°
23
89°
78°
24
87°
76°
25
88°
78°
26
89°
78°
27
90°
77°
28
91°
79°
29
91°
80°
30
89°
80°
31
90°
78°
1
90°
80°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Johns Island
Johns Island's July 2026 forecast shows daily high temperatures ranging from 85° to 93°, with overnight lows between 75° and 80°. The average high for July is 90° with an average low of 78°. 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 Johns Island. See also: August | September | October.
