Weather forecast for today
Johnston, SC

Weather forecast for today

Tuesday, Jun 17.

Mostly Cloudy
6:14 am

8:41 pm
EDT
Mostly Cloudy
88°F / 72°F
  • Wind: 10mph SW
  • Humidity: 62%
  • Precip. probability: 24%
  • Precipitation: 0"
  • UV index: 8
Today, in Johnston, prepare for a dull and mostly gray sky.
Temperatures will oscillate between a blazing 87.8°F at their highest and an agreeable 71.6°F at their lowest.
The maximum heat index, which adjusts the air temperature based on humidity, is computed to be a steamy 95°F. Note that heat index values are valued for light wind and location in the shade. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Expect the maximum temperature to remain consistent with the typical June high of 88.7°F.
Sunrise was at 6:14 am and sunset will be at 8:41 pm; the daylight will last for 14h and 27min.

Current condition

Partly Cloudy
10:57 am EDT
Partly Cloudy
  • 84°F
  • Feels like: 90°F
  • Wind: 9mph SSW
  • Humidity: 69%
  • Dewpoint: 72°F
  • Pressure: 30.06"Hg
  • Precipitation: 0"
  • Visibility: 10mi
  • UV index: 6
In Johnston, currently, patches of clouds are drifting across the sky.
The temperature is a temperate 84.2°F, and the feels-like temperature is evaluated at a hot 89.6°F. The current temperature is nearly at the maximum of today's anticipated 87.8°F.

Frequently asked questions

What is the temperature now?
The current temperature (10:57 am EDT) is 84.2°F. Feels-like temperature is 89.6°F.
What is the weather forecast for Johnston for today?
Today, gray skies will define the day.
What will be the maximum temperature today?
Today, the highest temperature will be 87.8°F, while the lowest temperature will be 71.6°F. The maximum heat index, which represents the influence of relative humidity on air temperature, is computed to be 95°F.
The highest temperature will be in line with the average maximum of 88.7°F in June. The lowest temperature will be also in line with the average low of 69.4°F.
What time are sunrise and sunset today?
On Tuesday, in Johnston, sunrise was at 6:14 am and sunset will be at 8:41 pm (EDT).
How long is the day today?
In Johnston, today, there will be 14h and 27min of daylight.

Hourly weather forecast

11 am
  • 84°F
  • Feels like:
    91°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph SW
  • Pressure: 30.03"Hg
  • Humidity: 68%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 86°F
  • Feels like:
    93°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph SW
  • Pressure: 30.03"Hg
  • Humidity: 65%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 10mi
1 pm
  • 88°F
  • Feels like:
    95°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph SW
  • Pressure: 30.03"Hg
  • Humidity: 62%
  • Precip. probability: 17%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 88°F
  • Feels like:
    95°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 10mph SW
  • Pressure: 30.03"Hg
  • Humidity: 62%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
3 pm
  • 88°F
  • Feels like:
    97°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph SW
  • Pressure: 30"Hg
  • Humidity: 60%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 88°F
  • Feels like:
    95°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph SW
  • Pressure: 30"Hg
  • Humidity: 60%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
5 pm
  • 88°F
  • Feels like:
    95°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph SW
  • Pressure: 29.97"Hg
  • Humidity: 59%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 86°F
  • Feels like:
    93°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph SW
  • Pressure: 29.97"Hg
  • Humidity: 61%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
7 pm
  • 86°F
  • Feels like:
    91°F
Partly Cloudy
Partly Cloudy
  • Wind: 8mph SW
  • Pressure: 29.94"Hg
  • Humidity: 64%
  • Precip. probability: 9%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 82°F
  • Feels like:
    90°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph SSW
  • Pressure: 29.97"Hg
  • Humidity: 69%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:41 pm
9 pm
  • 81°F
  • Feels like:
    86°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph SSW
  • Pressure: 29.97"Hg
  • Humidity: 75%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 10mi
10 pm
  • 79°F
  • Feels like:
    84°F
Mostly Clear
Mostly Clear
  • Wind: 6mph SSW
  • Pressure: 30"Hg
  • Humidity: 77%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
11 pm
  • 79°F
  • Feels like:
    82°F
Mostly Clear
Mostly Clear
  • Wind: 7mph SSW
  • Pressure: 30"Hg
  • Humidity: 78%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 10mi
Today, cloudy weather is expected.
The temperature will vary between the highest temperature of 87.8°F and the lowest temperature of 78.8°F. The feels-like temperature will be between the lowest temperature of 82.4°F and the highest temperature of 96.8°F. The hottest part of the day will be from 1 pm to 5 pm.
The maximum temperature will be resembling June's average highest temperature of 88.7°F. The night temperature will be also resembling the standard June low of 69.4°F.
Updated: Jun 17, 2025 @ 14:57:10 UTC
Published by: Weather U.S. | About Us
Data Sources | |
Weather Forecasting & Climate

Johnston, South Carolina, USA

  • en: Johnston, South Carolina, USA
  • es: Johnston, Carolina del Sur, EE.UU.
  • hr: Džonston, Južna Karolina, SAD
  • sr: Džonston, Južna Karolina, SAD
  • zh: 约翰斯顿, 南卡罗来纳, 美国
  • Latitude: 33.832080°
  • Longitude: -81.800942°
  • Elevation: 666 ft
  • Current time: 10:57am EDT
  • Sunrise: 6:14 am EDT
  • Sunset: 8:41 pm EDT
  • Timezone: America/New_York
Climate data
Share