JOHNS ISLAND, SC 29455 Weather Forecast & Current Conditions

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29455 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
CHARLESTON, SC Current Weather
3:56 AM EDT JUL 16, 2025
Scattered Clouds 81°F
Feels Like:	87°F
Dewpoint:	75°F
Rel. Hum.:	82%
Visibility:	10 miles
Wind:	SSE at 10 mph
Pressure:	30.06 inches
Last 72 hours
Local Area Snow Depth
South Carolina Current Weather
South Carolina MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

29455 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	JOHNS ISLAND, SC 29455 Weather Forecast	Snowfall Forecast pages Snow Depth pages

REST OF TONIGHT
Partly cloudy. Lows in the upper 70s. South winds 5 to 10 mph with gusts up to 20 mph.

WEDNESDAY
Mostly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. South winds 10 to 15 mph. Chance of rain 50 percent.

WEDNESDAY NIGHT
Partly cloudy. Lows in the upper 70s. South winds 10 to 15 mph.

THURSDAY
Sunny with a chance of showers and thunderstorms. Highs around 90. South winds 10 to 15 mph. Chance of rain 30 percent.

THURSDAY NIGHT
Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the upper 70s. Southwest winds 10 to 15 mph. Chance of rain 20 percent.

FRIDAY
Sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105.

FRIDAY NIGHT
Mostly clear. Lows in the upper 70s.

SATURDAY
Sunny with a slight chance of showers and thunderstorms. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 110.

SATURDAY NIGHT
Partly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening.

SUNDAY
Sunny with a chance of showers and thunderstorms. Highs in the mid 90s. Chance of rain 40 percent. Heat index values up to 110.

SUNDAY NIGHT
Partly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening.

MONDAY
Mostly sunny with a chance of showers and thunderstorms. Highs in the mid 90s. Chance of rain 50 percent. Heat index values up to 110.

MONDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 50 percent.

29455 WEATHER SATELLITE LOOPS

Visible Weather Satellite
JOHNS ISLAND, SC 29455

Infrared Weather Satellite
JOHNS ISLAND, SC 29455

29455 WEATHER RADAR LOOP

NEXRAD Weather Radar
JOHNS ISLAND, SC 29455

MOS COMPUTER WEATHER FORECAST

CHARLESTON, SC 3 hourly weather forecast

weather forecast created 8:00 PM EDT 7/15/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
16 JUL 2025

2 AM

79°

83°

Partly Cloudy

12%
RAIN
.01–.1 in

0% Thunder
( 22% severe)

SSE 8

88%

75°

Low 77°

5 AM

78°

80°

Partly Cloudy

SSE 8

88%

74°

High 91°

8 AM

80°

85°

Partly Cloudy

37%
RAIN
.25–.5 in

0% Thunder
( 35% severe)

S 8

85%

75°

Partly Cloudy

Chance of Rain

11 AM

86°

94°

Partly Cloudy

S 12

68%

74°

2 PM

87°

95°

Partly Cloudy

20%
RAIN
.1–.25 in

0% Thunder
( 52% severe)

S 14

65%

74°

5 PM

86°

94°

Partly Cloudy

S 14

68%

74°

8 PM

81°

86°

Partly Cloudy

4%

0% Thunder
( 16% severe)

S 12

79%

74°

11 PM

79°

83°

Partly Cloudy

S 9

88%

75°

Thursday
17 JUL 2025

2 AM

78°

81°

Partly Cloudy

5%

0% Thunder
( 18% severe)

S 8

91%

75°

Low 77°

5 AM

78°

81°

Partly Cloudy

S 8

91%

75°

High 93°

8 AM

80°

85°

Partly Cloudy

21%
RAIN
<.01 in

0% Thunder
( 31% severe)

SSW 7

88%

76°

Partly Cloudy

Chance of Rain

11 AM

86°

94°

Partly Cloudy

SSW 10

68%

74°

2 PM

90°

99°

Partly Cloudy

13%
RAIN
<.01 in

0% Thunder
( 51% severe)

SSW 13

58%

73°

5 PM

88°

97°

Partly Cloudy

S 14

63%

74°

8 PM

82°

88°

Partly Cloudy

1%

0% Thunder
( 19% severe)

S 12

77%

74°

11 PM

79°

83°

Partly Cloudy

SSW 9

88%

75°


CHARLESTON, SC extended weather forecast
BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE
Low 76°	Low 76°	Low 77°	Low 77°	Low 76°
High 92°	High 95°	High 96°	High 96°	High 95°

Partly Cloudy 27% Rain	Partly Cloudy 30% Rain	Partly Cloudy 29% Rain	Partly Cloudy 30% Rain	Partly Cloudy 34% Rain

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