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Johns Island, SC

90°F
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Johns Island

South Carolina

90°
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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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1 PM

91°
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 18%
Chevron down
Intermittent clouds
alerts

Heat Advisory

11:00 AM Tuesday - 7:00 PM Tuesday

RealFeel Shade™98°

Heat Index106°

WindSSW 13 mph

Air QualityFair

Max UV Index11.1 (Extreme)

Wind Gusts16 mph

Humidity65%

Indoor Humidity65% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover63%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

93°
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 15%
Chevron down
Intermittent clouds
alerts

Heat Advisory

11:00 AM Tuesday - 7:00 PM Tuesday

RealFeel Shade™100°

Heat Index108°

WindS 15 mph

Air QualityFair

Max UV Index10.1 (Very High)

Wind Gusts20 mph

Humidity62%

Indoor Humidity62% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

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 15%
Chevron down
Intermittent clouds
alerts

Heat Advisory

11:00 AM Tuesday - 7:00 PM Tuesday

RealFeel Shade™99°

Heat Index107°

WindS 15 mph

Air QualityFair

Max UV Index6.8 (High)

Wind Gusts21 mph

Humidity66%

Indoor Humidity66% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

91°
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 19%
Chevron down
Intermittent clouds
alerts

Heat Advisory

11:00 AM Tuesday - 7:00 PM Tuesday

RealFeel Shade™98°

Heat Index106°

WindSSW 14 mph

Air QualityFair

Max UV Index4.7 (Moderate)

Wind Gusts22 mph

Humidity68%

Indoor Humidity68% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover62%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

90°
RealFeel® 102°
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 43%
Chevron down
Intermittent clouds
alerts

Heat Advisory

11:00 AM Tuesday - 7:00 PM Tuesday

RealFeel Shade™98°

Heat Index105°

WindSSW 14 mph

Air QualityFair

Max UV Index3.1 (Moderate)

Wind Gusts23 mph

Humidity70%

Indoor Humidity70% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

6 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 47%
Chevron down
Intermittent clouds
alerts

Heat Advisory

11:00 AM Tuesday - 7:00 PM Tuesday

RealFeel Shade™97°

Heat Index104°

WindSSW 14 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts21 mph

Humidity73%

Indoor Humidity73% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover74%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

88°
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 51%
Chevron down
Thunderstorms

RealFeel Shade™96°

Heat Index103°

WindSSW 14 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts18 mph

Humidity77%

Indoor Humidity77% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover85%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

8 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 40%
Chevron down
Mostly sunny

RealFeel Shade™97°

Heat Index101°

WindSSW 14 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts16 mph

Humidity78%

Indoor Humidity78% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

86°
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
Mostly clear

Heat Index100°

WindSSW 14 mph

Air QualityFair

Wind Gusts15 mph

Humidity80%

Indoor Humidity80% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

10 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 40%
Chevron down
Mostly clear

Heat Index98°

WindSSW 13 mph

Air QualityFair

Wind Gusts14 mph

Humidity83%

Indoor Humidity83% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

85°
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 51%
Chevron down
Partly cloudy w/ t-storms

Heat Index99°

WindSSW 13 mph

Air QualityFair

Wind Gusts14 mph

Humidity84%

Indoor Humidity84% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Rain0.04 in

Visibility6 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 107°, intermittent clouds with a 18% 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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