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
10:56 PM EDT MAY 19, 2025
Few Clouds 75°F
Feels Like:	75°F
Dewpoint:	72°F
Rel. Hum.:	90%
Visibility:	10 miles
Wind:	S at 5 mph
Pressure:	29.92 inches
Last 72 hours
Local Area Snow Depth
South Carolina Current Weather
South Carolina MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

29455 WEATHER FORECAST
10-Day model forecast maps 2024 Hurricanes	JOHNS ISLAND, SC 29455 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Mostly cloudy. A slight chance of showers and thunderstorms this evening. Lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 20 percent.

TUESDAY
Mostly sunny. Highs in the lower 90s, except in the upper 80s near the coast. Southwest winds around 5 mph, increasing to south 10 to 15 mph in the afternoon.

TUESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Southwest winds 10 to 15 mph.

WEDNESDAY
Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.

WEDNESDAY NIGHT
Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the upper 60s. West winds 10 to 15 mph. Chance of rain 20 percent.

THURSDAY
Sunny. Highs in the mid 80s.

THURSDAY NIGHT
Mostly clear. Lows in the mid 60s.

FRIDAY
Sunny. Highs in the lower 80s.

FRIDAY NIGHT
Mostly clear. Lows around 60.

SATURDAY
Sunny. Highs around 80.

SATURDAY NIGHT
Mostly clear. Lows in the mid 60s.

SUNDAY
Sunny. Highs in the lower 80s.

SUNDAY NIGHT
Partly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 20 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 AM EDT 5/19/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
19 MAY 2025

2 PM

87°

89°

Partly Cloudy

19%
RAIN
<.01 in

0% Thunder
( 22% severe)

W 3

48%

65°

High 88°

5 PM

87°

90°

Mostly Cloudy

WSW 6

52%

67°

Partly Cloudy

8 PM

79°

82°

Partly Cloudy

14%
RAIN
***

0% Thunder
( 12% severe)

SW 5

74%

70°

11 PM

75°

75°

Partly Cloudy

S 3

87%

71°

Tuesday
20 MAY 2025

2 AM

73°

73°

Partly Cloudy

4%

0% Thunder
( 10% severe)

SSW 2

93%

71°

Low 71°

5 AM

72°

72°

Partly Cloudy

SSW 2

97%

71°

High 94°

8 AM

75°

75°

Partly Cloudy

6%

0% Thunder
( 10% severe)

WSW 2

90%

72°

Partly Cloudy

11 AM

86°

91°

Partly Cloudy

SW 6

61%

71°

2 PM

91°

96°

Partly Cloudy

7%

0% Thunder
( 18% severe)

SSW 9

49%

69°

5 PM

90°

95°

Partly Cloudy

SSW 12

50%

69°

8 PM

81°

84°

Partly Cloudy

1%

0% Thunder
( 6% severe)

S 10

69%

70°

11 PM

77°

79°

Partly Cloudy

S 9

82%

71°

Wednesday
21 MAY 2025

2 AM

75°

75°

Partly Cloudy

2%

0% Thunder
( 3% severe)

SSW 9

90%

72°

Low 72°

5 AM

74°

74°

Partly Cloudy

SW 9

84%

69°

High 94°

8 AM

76°

77°

Partly Cloudy

6%

0% Thunder
( 10% severe)

WSW 10

79%

69°

Partly Cloudy

11 AM

86°

90°

Partly Cloudy

WSW 13

57%

69°

2 PM

90°

94°

Partly Cloudy

15%
RAIN
<.01 in

0% Thunder
( 21% severe)

WSW 16

49%

68°

5 PM

90°

92°

Clear

W 17

44%

65°

8 PM

83°

84°

Clear

W 12

51%

63°


CHARLESTON, SC extended weather forecast
Thursday 22 MAY 2025	Friday 23 MAY 2025	Saturday 24 MAY 2025	Sunday 25 MAY 2025	Monday 26 MAY 2025
Low 61°	Low 61°	Low 55°	Low 59°	Low 66°
High 87°	High 80°	High 78°	High 83°	High 86°

Clear 6% Rain	Partly Cloudy 18% Rain	Clear 5% Rain	Clear 16% Rain	Partly Cloudy 34% Rain

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