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Johns Island, SC

86°F
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Johns Island

South Carolina

86°
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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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6 PM

86°
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
Partly sunny
alerts

Extreme Heat Warning

11:00 AM Friday - 7:00 PM Friday

RealFeel Shade™94°

Heat Index100°

WindSSW 15 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts25 mph

Humidity81%

Indoor Humidity81% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

7 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 8%
Chevron down
Partly sunny

RealFeel Shade™96°

Heat Index99°

WindSSW 15 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts21 mph

Humidity79%

Indoor Humidity79% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

85°
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 43%
Chevron down
Mostly sunny

RealFeel Shade™95°

Heat Index98°

WindSSW 14 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts16 mph

Humidity81%

Indoor Humidity81% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

85°
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 47%
Chevron down
Mostly clear

Heat Index97°

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

10 PM

83°
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 51%
Chevron down
Partly cloudy w/ t-storms

Heat Index95°

WindSW 12 mph

Air QualityFair

Wind Gusts13 mph

Humidity87%

Indoor Humidity87% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Rain0.04 in

Visibility6 mi

Cloud Ceiling30000 ft

11 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 24%
Chevron down
Mostly clear

Heat Index92°

WindSW 12 mph

Air QualityFair

Wind Gusts13 mph

Humidity91%

Indoor Humidity91% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

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 86° with a RealFeel® of 98°, partly sunny with a 5% 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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