Weather forecast for today
Charleston International Airport, SC

Weather forecast for today

Wednesday, Jun 18.

Isolated Thunderstorms
6:10 am

8:32 pm
EDT
Isolated Thunderstorms
91°F / 77°F
  • Wind: 11mph SW
  • Humidity: 70%
  • Precip. probability: 51%
  • Precipitation: 0.2"
  • UV index: 10
Today, on Wednesday, June 18, unpredictable thunderstorm development is likely.
The likelihood of rain is high. However, precipitation will be light. The temperature variation is expected to range from a maximum of a tropical 91.4°F to a minimum of a moderately hot 77°F.
The maximum heat index, which factors the actual air temperature with the relative humidity, is computed to be a scorching 109.4°F. Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
With a forecast of 91.4°F, the day’s weather feels closer to July than June.
Sunrise will be at 6:10 am and sunset at 8:32 pm; the daylight will last for 14h and 22min.

Current condition

Cloudy
3:50 am EDT
Cloudy
  • 79°F
  • Feels like: 84°F
  • Wind: 8mph SW
  • Humidity: 82%
  • Dewpoint: 73°F
  • Pressure: 30.06"Hg
  • Precipitation: 0"
  • Visibility: 10mi
  • UV index: 0
Currently, the weather is gloomy with extensive cloud cover.
The temperature is a temperate 78.8°F, and the feels-like temperature is calculated to be a warm 84.2°F. The current temperature is near the lowest anticipated 77°F for today.

Weather radar - Charleston International Airport, SC

Doppler radar displays precipitation for the past 2h and forecasts the next 30min

Frequently asked questions

What is the current temperature?
At 3:50 am EDT, the temperature is 78.8°F. Feels-like temperature is 84.2°F.
What is the weather forecast for Charleston International Airport for today?
On Wednesday, isolated thunderstorm cells could develop in the afternoon.
Will it rain today?
Light precipitation of 0.2" is expected. The possibility of rainfall is 51%.
What will be the highest temperature today?
Today, the maximum temperature in Charleston International Airport will be 91.4°F, while the minimum temperature will be 77°F. The maximum heat index, which adjusts the air temperature based on humidity, is computed to be 109.4°F.
The maximum temperature will be a couple of degrees higher than the average highest temperature of 82.4°F in June. The lowest temperature will be notably higher than the average low of 59°F.
When is the sunrise / sunset today?
On Wednesday, in Charleston International Airport, sunrise will be at 6:10 am and sunset at 8:32 pm (EDT).
How long is the day today?
In Charleston International Airport, South Carolina, today, there will be 14h and 22min of daylight.

Hourly weather forecast

4 am
  • 79°F
  • Feels like:
    84°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 8mph SW
  • Pressure: 30.03"Hg
  • Humidity: 83%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
6 am
  • 79°F
  • Feels like:
    79°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph SW
  • Pressure: 30.06"Hg
  • Humidity: 83%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
Sunrise: 6:10 am
8 am
  • 81°F
  • Feels like:
    86°F
Mostly Sunny
Mostly Sunny
  • Wind: 7mph SW
  • Pressure: 30.09"Hg
  • Humidity: 80%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 86°F
  • Feels like:
    93°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph WSW
  • Pressure: 30.09"Hg
  • Humidity: 65%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 88°F
  • Feels like:
    97°F
Few Showers
Few Showers
  • Wind: 9mph SW
  • Pressure: 30.09"Hg
  • Humidity: 59%
  • Precip. probability: 34%
  • Precipitation: 0.04"
  • Visibility: 10mi
2 pm
  • 88°F
  • Feels like:
    95°F
Showers
Showers
  • Wind: 9mph SW
  • Pressure: 30.09"Hg
  • Humidity: 63%
  • Precip. probability: 51%
  • Precipitation: 0.04"
  • Visibility: 7mi
4 pm
  • 90°F
  • Feels like:
    99°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 10mph SSW
  • Pressure: 30.06"Hg
  • Humidity: 59%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 86°F
  • Feels like:
    95°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph S
  • Pressure: 30.03"Hg
  • Humidity: 67%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 82°F
  • Feels like:
    90°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph S
  • Pressure: 30.06"Hg
  • Humidity: 76%
  • Precip. probability: 9%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:32 pm
10 pm
  • 81°F
  • Feels like:
    86°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SSW
  • Pressure: 30.06"Hg
  • Humidity: 84%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
Today, weather will be unstable, and a mix of overcast, mostly clear, rain-soaked and storm-filled weather is expected.
Rain is forecasted from 12 pm to 2 pm and at 5 pm. With light precipitation of 0.12", most rainfall is expected at 1 pm.
The temperature will be between the highest temperature of 89.6°F and the lowest temperature of 78.8°F. The feels-like temperature will be between a minimum of 78.8°F and a maximum of 100.4°F. The hottest part of the day will be at 1 pm, 4 pm and 5 pm.
The maximum temperature will be more close to July's average high of 86°F than June's 82.4°F. The expected low will be also more alike with what’s common in July than the current June average of 59°F.
Updated: Jun 18, 2025 @ 07:50:46 UTC
Published by: Weather U.S. | About Us
Data Sources | |
Weather Forecasting & Climate

Charleston International Airport, South Carolina, USA

  • en: Charleston International Airport, South Carolina, USA
  • es: Aeropuerto Internacional de Charleston, Carolina del Sur, EE.UU.
  • hr: Čarlston эl-aralыk aэroportu, Južna Karolina, SAD
  • sr: Čarlston эl-aralыk aэroportu, Južna Karolina, SAD
  • zh: 查尔斯顿国际机场, 南卡罗来纳, 美国
  • Latitude: 32.894268°
  • Longitude: -80.038159°
  • Elevation: 36 ft
  • Current time: 3:50am EDT
  • Sunrise: 6:10 am EDT
  • Sunset: 8:32 pm EDT
  • Timezone: America/New_York
Climate data
Share