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Flash floods threaten 43 million people in the Northeast ahead of dramatic cooldown. Get details Chevron right

Sullivan's Island, SC

83°F
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Sullivan's Island

South Carolina

83°
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Sullivan's Island, SC Weather
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Today

Hourly

Daily Radar MinuteCast® Monthly Air Quality Health & Activities

9 AM

85°
RealFeel® 99°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 5%
Chevron down
Partly sunny

RealFeel Shade™93°

WindWSW 7 mph

Air QualityFair

Max UV Index3 (Moderate)

Wind Gusts10 mph

Humidity79%

Indoor Humidity79% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

87°
RealFeel® 104°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 6%
Chevron down
Partly sunny

RealFeel Shade™96°

WindWSW 7 mph

Air QualityFair

Max UV Index5 (Moderate)

Wind Gusts13 mph

Humidity76%

Indoor Humidity76% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

90°
RealFeel® 107°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 7%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™99°

WindWSW 7 mph

Air QualityFair

Max UV Index7 (High)

Wind Gusts14 mph

Humidity70%

Indoor Humidity70% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

91°
RealFeel® 109°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 7%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™100°

WindSW 8 mph

Air QualityFair

Max UV Index10 (Very High)

Wind Gusts16 mph

Humidity65%

Indoor Humidity65% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

93°
RealFeel® 110°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 11%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™101°

WindSW 9 mph

Air QualityFair

Max UV Index11 (Extreme)

Wind Gusts16 mph

Humidity62%

Indoor Humidity62% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

95°
RealFeel® 111°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 19%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™102°

WindSSW 10 mph

Air QualityFair

Max UV Index10 (Very High)

Wind Gusts18 mph

Humidity59%

Indoor Humidity59% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

93°
RealFeel® 108°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 19%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™101°

WindSSW 12 mph

Air QualityFair

Max UV Index7 (High)

Wind Gusts21 mph

Humidity61%

Indoor Humidity61% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

92°
RealFeel® 106°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 24%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™100°

WindSSW 13 mph

Air QualityFair

Max UV Index5 (Moderate)

Wind Gusts23 mph

Humidity63%

Indoor Humidity63% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

91°
RealFeel® 103°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 47%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™99°

WindSSW 13 mph

Air QualityFair

Max UV Index3 (Moderate)

Wind Gusts25 mph

Humidity67%

Indoor Humidity67% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

89°
RealFeel® 98°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 51%
Chevron down
Partly sunny w/ t-storms
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™95°

WindSSW 13 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts23 mph

Humidity74%

Indoor Humidity74% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Rain0.05 in

Visibility5 mi

Cloud Ceiling30000 ft

7 PM

88°
RealFeel® 99°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 43%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™99°

WindSSW 12 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts18 mph

Humidity75%

Indoor Humidity75% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

85°
RealFeel® 94°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 51%
Chevron down
Thunderstorms

RealFeel Shade™94°

WindSSW 10 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts14 mph

Humidity82%

Indoor Humidity82% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Rain0.05 in

Visibility5 mi

Cloud Ceiling4000 ft

9 PM

85°
RealFeel® 96°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

WindSSW 9 mph

Air QualityFair

Wind Gusts16 mph

Humidity82%

Indoor Humidity82% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

84°
RealFeel® 95°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 40%
Chevron down
Cloudy

WindSSW 9 mph

Air QualityFair

Wind Gusts15 mph

Humidity85%

Indoor Humidity85% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

84°
RealFeel® 96°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

WindSSW 9 mph

Air QualityFair

Wind Gusts15 mph

Humidity84%

Indoor Humidity84% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover92%

Visibility10 mi

Cloud Ceiling30000 ft

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World North America United States South Carolina Sullivan's Island

Weather Near Sullivan's Island:

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