Sumter 7-day weather forecast

Written by:
June 23, 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 102 °F on Tuesday, while the low is 70 °F on Thursday. There are expected to be 4 sunny days and rain on 1 day this week.

There are currently no weather alerts.

Monday, June 23

- High of 97 °F, low of 74 °F (38% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:11 AM, sunset at 8:35 PM
1 / 6
Stepan Bessmelnitsin // Shutterstock

Tuesday, June 24

- High of 102 °F, low of 75 °F (36% humidity)
- Partly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 6:11 AM, sunset at 8:36 PM
2 / 6
Dmitry Naumov // Shutterstock

Wednesday, June 25

- High of 97 °F, low of 71 °F (48% humidity)
- Partly sunny with a 100% chance of rain (9 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Fresh breeze (23 mph wind)
- Sunrise at 6:11 AM, sunset at 8:36 PM
- New moon
3 / 6
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Thursday, June 26

- High of 92 °F, low of 70 °F (42% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 6:12 AM, sunset at 8:36 PM
4 / 6
Andrzej Kubik // Shutterstock

Friday, June 27

- High of 93 °F, low of 72 °F (41% humidity)
- Overcast with a 0% chance of rain
- Gentle breeze (11 mph wind)
- Sunrise at 6:12 AM, sunset at 8:36 PM
5 / 6
Maxim Grohotov // Shutterstock

Saturday, June 28

- High of 96 °F, low of 73 °F (35% humidity)
- Sunny with a 0% chance of rain
- Gentle breeze (10 mph wind)
- Sunrise at 6:12 AM, sunset at 8:36 PM
6 / 6
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Sunday, June 29

- High of 96 °F, low of 74 °F (37% humidity)
- Sunny with a 0% chance of rain
- Gentle breeze (10 mph wind)
- Sunrise at 6:13 AM, sunset at 8:36 PM

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