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Johns Island, SC

91°F
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Johns Island

South Carolina

91°
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Johns Island, SC Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

 Air Quality Health & Activities

July

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
28
A heavy t-storm in the p.m.
96°
75°
29
A heavy t-storm in the p.m.
91°
73°
30
Humid with a stray t-storm
90°
74°
1
Humid; a stray a.m. t-storm
91°
71°
2
Mostly sunny and humid
94°
74°
3
Mostly sunny, warm and humid
95°
75°
4
Partly sunny, a stray t-storm
97°
76°
5
A stray afternoon t-storm
96°
75°
6
Humid; a p.m. t-storm or two
94°
74°
7
Humid; a p.m. t-storm or two
91°
73°
8
Humid; a p.m. t-storm or two
91°
74°
9
A morning shower, then rain
90°
73°
10
Sunshine and a few clouds
92°
74°
11
Showers around in the morning
92°
76°
12
Humid with clouds and sun
91°
75°
13
Sunshine
93°
76°
14
A shower and thunderstorm
92°
74°
15
Overcast, t-storms; humid
86°
73°
16
A shower and thunderstorm
86°
73°
17
A thunderstorm in spots
87°
74°
18
A shower and thunderstorm
88°
74°
19
A thunderstorm in spots
88°
73°
20
A shower and thunderstorm
89°
75°
21
Humid; an afternoon t-storm
89°
76°
22
Humid; an afternoon t-storm
88°
76°
23
A few showers in the morning
88°
75°
24
A shower and thunderstorm
89°
76°
25
A shower and thunderstorm
87°
75°
26
A shower and thunderstorm
88°
76°
27
A shower and t-storm; humid
88°
76°
28
A shower and thunderstorm
86°
75°
29
A shower and thunderstorm
87°
76°
30
A shower and thunderstorm
89°
75°
31
A thunderstorm in spots
88°
72°
1
Cloudy
87°
71°

Temperature Graph

°F
100° 94° 88° 82° 76° Jul
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
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 86° to 97°, with overnight lows between 71° and 76°. The average high for July is 90° with an average low of 74°. 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.

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World North America United States South Carolina Johns Island

Weather Near Johns Island:

  • Charleston, SC
  • Mount Pleasant, SC
  • North Charleston, SC
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