Sumter 7-day weather forecast

Written by:
June 9, 2025
ESOlex // Shutterstock

Sumter 7-day weather forecast

Stacker created the forecast for Sumter, South Carolina using data from OpenWeather. This week's high is 96 °F on Sunday, while the low is 69 °F on Saturday. There are expected to be 3 sunny days and rain on 4 days this week.

There are currently no weather alerts.

Monday, June 16

- High of 88 °F, low of 73 °F (49% humidity)
- Partly sunny with a 95% chance of rain (1 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 6:10 AM, sunset at 8:34 PM
1 / 6
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Tuesday, June 17

- High of 93 °F, low of 73 °F (52% humidity)
- Mostly cloudy with a 100% chance of rain (5 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:10 AM, sunset at 8:34 PM
2 / 6
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Wednesday, June 18

- High of 94 °F, low of 75 °F (44% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:10 AM, sunset at 8:34 PM
- Last quarter moon
3 / 6
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Thursday, June 19

- High of 95 °F, low of 75 °F (42% humidity)
- Partly sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 6:10 AM, sunset at 8:35 PM
4 / 6
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Friday, June 20

- High of 94 °F, low of 73 °F (42% humidity)
- Overcast with a 94% chance of rain (1 mm of rain)
- Gentle breeze (10 mph wind)
- Sunrise at 6:10 AM, sunset at 8:35 PM
5 / 6
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Saturday, June 21

- High of 95 °F, low of 69 °F (42% humidity)
- Sunny with a 100% chance of rain (1 mm of rain)
- Gentle breeze (10 mph wind)
- Sunrise at 6:10 AM, sunset at 8:35 PM
6 / 6
LeManna // Shutterstock

Sunday, June 22

- High of 96 °F, low of 73 °F (38% humidity)
- Sunny with a 0% chance of rain
- Gentle breeze (10 mph wind)
- Sunrise at 6:11 AM, sunset at 8:35 PM

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