Weather forecast for 10 days
Sumter, SC

Weather forecast for the weekend

Saturday, Jul 19.

Mostly Sunny
6:23 am

8:32 pm
EDT
Mostly Sunny
95°F / 77°F
  • Wind: 7mph WSW
  • Humidity: 62%
  • Precip. probability: 18%
  • Precipitation: 0"
  • UV index: 11
On Saturday, in Sumter, mostly sunny weather is likely, with high visibility.
The temperature is forecasted to vary between a steamy 95°F and a warm 77°F.
The day’s top temperature is expected to be a couple of degrees higher than the typical July high of 90.7°F.
Sunrise will be at 6:23 am and sunset at 8:32 pm; the daylight will last for 14h and 10min.

Sunday, Jul 20.

Mostly Sunny
6:23 am

8:31 pm
EDT
Mostly Sunny
97°F / 77°F
  • Wind: 8mph WSW
  • Humidity: 61%
  • Precip. probability: 24%
  • Precipitation: 0"
  • UV index: 11
On Sunday, July 20, dry and sunny weather is expected throughout the day.
The highest anticipated temperature is a sweltering 96.8°F, while the lowest temperature will be a moderately hot 77°F.
The daily maximum temperature is anticipated to be relatively higher than July's climate average of 90.7°F.
Sunrise will be at 6:23 am and sunset at 8:31 pm; the daylight will last for 14h and 8min.

Frequently asked questions

What is the weather forecast for Sumter for Saturday?
On Saturday, a glowing sky and minimal clouds are expected.
What will be the highest temperature on Saturday?
On Saturday, the maximum temperature will be 95°F, while the minimum temperature will be 77°F.
What is the weather forecast for Sumter for Sunday?
On Sunday, blue skies and warm sunshine will define the conditions.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 96.8°F, while the lowest temperature will be 77°F.
What is the weather forecast for Sumter for the next ten days?
In Sumter, a combination of lightning-active, cloudy and sunny weather is predicted for the next ten days.
Will it rain in the next ten days?
Rain is forecasted for Monday through next Thursday in Sumter. With light precipitation of 0.24", Monday will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will range between 89.6°F and 96.8°F, while the minimum temperature will range between 73.4°F and 77°F.
Taking the humidity into consideration, the maximum feel-like temperature will range between 107.6°F and 122°F.
What will be the hottest and the coldest days in Sumter?
The hottest day will be Sunday, with a maximum of 96.8°F. The coldest day will be tomorrow, with a maximum of 89.6°F.

Long-term weather forecast

TueJul 15.
  • 91°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph ESE
  • Humidity: 69%
  • UV index: 11
  • Precip. probability: 15%
  • Precipitation: 0"
  • 6:20 am 8:34 pm EDT
WedJul 16.
  • 90°F
  • 75°F
Partly Cloudy
Partly Cloudy
  • Wind: 8mph SSE
  • Humidity: 74%
  • UV index: 11
  • Precip. probability: 23%
  • Precipitation: 0"
  • 6:21 am 8:33 pm EDT
ThuJul 17.
  • 93°F
  • 75°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SSW
  • Humidity: 71%
  • UV index: 11
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:21 am 8:33 pm EDT
FriJul 18.
  • 95°F
  • 75°F
Mostly Sunny
Mostly Sunny
  • Wind: 7mph SW
  • Humidity: 67%
  • UV index: 11
  • Precip. probability: 16%
  • Precipitation: 0"
  • 6:22 am 8:33 pm EDT
SatJul 19.
  • 95°F
  • 77°F
Mostly Sunny
Mostly Sunny
  • Wind: 7mph WSW
  • Humidity: 62%
  • UV index: 11
  • Precip. probability: 18%
  • Precipitation: 0"
  • 6:23 am 8:32 pm EDT
SunJul 20.
  • 97°F
  • 77°F
Mostly Sunny
Mostly Sunny
  • Wind: 8mph WSW
  • Humidity: 61%
  • UV index: 11
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:23 am 8:31 pm EDT
MonJul 21.
  • 95°F
  • 75°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 6mph WSW
  • Humidity: 63%
  • UV index: 11
  • Precip. probability: 46%
  • Precipitation: 0.24"
  • 6:24 am 8:31 pm EDT
TueJul 22.
  • 91°F
  • 73°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 5mph ESE
  • Humidity: 71%
  • UV index: 7
  • Precip. probability: 47%
  • Precipitation: 0.16"
  • 6:25 am 8:30 pm EDT
WedJul 23.
  • 91°F
  • 73°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 5mph ENE
  • Humidity: 74%
  • UV index: 8
  • Precip. probability: 60%
  • Precipitation: 0.16"
  • 6:25 am 8:30 pm EDT
ThuJul 24.
  • 95°F
  • 75°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Wind: 4mph ENE
  • Humidity: 69%
  • UV index: 10
  • Precip. probability: 32%
  • Precipitation: 0.04"
  • 6:26 am 8:29 pm EDT
Models point to a combination of turbulent, overcast and clear weather is forecasted.
Rain is expected on Monday through next Thursday.
In the upcoming period, the highest temperature will vary between 89.6°F and 96.8°F, while the overnight low will be nearly unchanged, as the lowest temperatures will remain in the range of 73.4°F to 77°F.
The hottest day will be Sunday, with a maximum of 96.8°F; the coldest day will be Wednesday, with a maximum of 89.6°F.
Taking the humidity into consideration, the maximum feel-like temperature may increase significantly and vary between an extremely hot 107.6°F and a blazing hot 122°F.
Sumter experiences its warmest weather in July, with high temperatures averaging 90.7°F and lows at 72.9°F.
Updated: Jul 15, 2025 @ 13:35:56 UTC
Published by: Weather U.S. | About Us
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