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Johns Island, SC

89°F
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Johns Island

South Carolina

89°
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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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3 PM

91°
RealFeel® 105°
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%
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Intermittent clouds
alerts

Heat Advisory

11:00 AM Monday - 7:00 PM Monday

RealFeel Shade™99°

Heat Index107°

WindS 16 mph

Air QualityFair

Max UV Index6.7 (High)

Wind Gusts20 mph

Humidity69%

Indoor Humidity69% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover71%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

90°
RealFeel® 101°
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
Intermittent clouds
alerts

Heat Advisory

11:00 AM Monday - 7:00 PM Monday

RealFeel Shade™97°

Heat Index104°

WindS 16 mph

Air QualityFair

Max UV Index4.2 (Moderate)

Wind Gusts22 mph

Humidity68%

Indoor Humidity68% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

89°
RealFeel® 100°
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
Intermittent clouds
alerts

Heat Advisory

11:00 AM Monday - 7:00 PM Monday

RealFeel Shade™96°

Heat Index103°

WindS 16 mph

Air QualityFair

Max UV Index2.9 (Moderate)

Wind Gusts24 mph

Humidity70%

Indoor Humidity70% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

88°
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 5%
Chevron down
Intermittent clouds
alerts

Heat Advisory

11:00 AM Monday - 7:00 PM Monday

RealFeel Shade™96°

Heat Index102°

WindS 16 mph

Air QualityFair

Max UV Index1.7 (Low)

Wind Gusts23 mph

Humidity71%

Indoor Humidity71% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

87°
RealFeel® 97°
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 8%
Chevron down
Intermittent clouds

RealFeel Shade™97°

Heat Index101°

WindS 15 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts21 mph

Humidity75%

Indoor Humidity75% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

86°
RealFeel® 92°
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
Mostly cloudy w/ t-storms

RealFeel Shade™92°

Heat Index98°

WindS 14 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts17 mph

Humidity79%

Indoor Humidity79% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover65%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

9 PM

84°
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 47%
Chevron down
Intermittent clouds

Heat Index95°

WindSSW 13 mph

Air QualityFair

Wind Gusts15 mph

Humidity84%

Indoor Humidity84% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling4000 ft

10 PM

82°
RealFeel® 93°
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 35%
Chevron down
Intermittent clouds

Heat Index93°

WindSSW 13 mph

Air QualityFair

Wind Gusts14 mph

Humidity89%

Indoor Humidity89% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

81°
RealFeel® 91°
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 19%
Chevron down
Intermittent clouds

Heat Index90°

WindSSW 13 mph

Air QualityFair

Wind Gusts14 mph

Humidity93%

Indoor Humidity93% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Johns Island

AccuWeather's hourly forecast for Johns Island provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 91° with a RealFeel® of 105°, intermittent clouds with a 7% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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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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