Weather forecast for today
Sumter, SC

Weather forecast for today

Wednesday, Jun 18.

Mostly Sunny
6:08 am

8:36 pm
EDT
Mostly Sunny
93°F / 75°F
  • Wind: 9mph SW
  • Humidity: 65%
  • Precip. probability: 6%
  • Precipitation: 0.04"
  • UV index: 10
On Wednesday, June 18, sun-filled skies will remain for most of the day.
Minimal precipitation is anticipated for today. Temperature span will be from a high of a blazing 93.2°F to a low of a temperate 75.2°F.
The maximum heat index, which measures the combined effect of heat and moisture, is appraised at a torridly hot 111.2°F. Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
With a forecast of 93.2°F, the day’s weather feels closer to July than June.
Sunrise will be at 6:08 am and sunset at 8:36 pm; the daylight will last for 14h and 28min.

Current condition

Light Rain
12:35 am EDT
Light Rain
  • 77°F
  • Feels like: 77°F
  • Wind: 3mph S
  • Humidity: 82%
  • Dewpoint: 72°F
  • Pressure: 30.04"Hg
  • Precipitation: 0"
  • Visibility: 10mi
  • UV index: 0
Currently, in Sumter, a passing drizzle is making the streets damp.
The temperature is a warm 77°F. The current temperature is near the lowest expected 75.2°F for today.

Frequently asked questions

What is the current temperature?
At 12:35 am EDT, the temperature is 77°F.
What is the weather forecast for Sumter for today?
Today, mainly sunny conditions will dominate the day.
Will it rain today?
Today, there is a low chance of minimal precipitation in Sumter.
What will be the highest temperature in Sumter today?
Today, the highest temperature will be 93.2°F, while the lowest temperature will be 75.2°F. The maximum heat index, which factors the actual air temperature with the relative humidity, is calculated to be 111.2°F.
The highest temperature will be a couple of degrees higher than the average maximum of 87.4°F in June. The lowest temperature will be also moderately higher than the average low of 70°F.
When are sunrise and sunset today?
On Wednesday, in Sumter, sunrise will be at 6:08 am and sunset at 8:36 pm (EDT).
How long is the day today?
Today, the daylight will last for 14h and 28min.

Hourly weather forecast

2 am
  • 79°F
  • Feels like:
    79°F
Clear
Clear
  • Wind: 4mph SSW
  • Pressure: 30.03"Hg
  • Humidity: 85%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 77°F
  • Feels like:
    77°F
Clear
Clear
  • Wind: 4mph SSW
  • Pressure: 30.03"Hg
  • Humidity: 91%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
6 am
  • 75°F
  • Feels like:
    75°F
Mostly Clear
Mostly Clear
  • Wind: 4mph SW
  • Pressure: 30.03"Hg
  • Humidity: 94%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
Sunrise: 6:08 am
8 am
  • 79°F
  • Feels like:
    84°F
Mostly Sunny
Mostly Sunny
  • Wind: 6mph SW
  • Pressure: 30.06"Hg
  • Humidity: 90%
  • Precip. probability: 7%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 84°F
  • Feels like:
    93°F
Sunny
Sunny
  • Wind: 7mph WSW
  • Pressure: 30.09"Hg
  • Humidity: 73%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 88°F
  • Feels like:
    97°F
Mostly Sunny
Mostly Sunny
  • Wind: 8mph WSW
  • Pressure: 30.06"Hg
  • Humidity: 62%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 91°F
  • Feels like:
    99°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SW
  • Pressure: 30.06"Hg
  • Humidity: 53%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 91°F
  • Feels like:
    99°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SW
  • Pressure: 30"Hg
  • Humidity: 50%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 90°F
  • Feels like:
    99°F
Sunny
Sunny
  • Wind: 9mph SW
  • Pressure: 29.97"Hg
  • Humidity: 52%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 86°F
  • Feels like:
    93°F
Sunny
Sunny
  • Wind: 5mph SSW
  • Pressure: 30"Hg
  • Humidity: 61%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:36 pm
10 pm
  • 82°F
  • Feels like:
    88°F
Clear
Clear
  • Wind: 5mph SSW
  • Pressure: 30.03"Hg
  • Humidity: 72%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
Today, a combination of sun-filled and cloudy weather is predicted.
The temperature will be between the highest temperature of 91.4°F and the lowest temperature of 75.2°F. The feels-like temperature will vary between the highest temperature of 98.6°F and the lowest temperature of 75.2°F. The hottest part of the day will be from 2 pm to 5 pm.
The maximum is expected to resemble July's average high of 90.7°F rather than June's. Forecasts indicate a night temperature relatively higher than the usual June minimum of 70°F.
Updated: Jun 18, 2025 @ 04:35:56 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate

Sumter, South Carolina, USA

  • en: Sumter, South Carolina, USA
  • es: Sumter, Carolina del Sur, EE.UU.
  • hr: Samter, Južna Karolina, SAD
  • sr: Samter, Južna Karolina, SAD
  • zh: 萨姆特, 南卡罗来纳, 美国
  • Latitude: 33.920435°
  • Longitude: -80.341469°
  • Elevation: 171 ft
  • Current time: 12:35am EDT
  • Sunrise: 6:08 am EDT
  • Sunset: 8:36 pm EDT
  • Timezone: America/New_York
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