Sumter 7-day weather forecast

Written by:
December 8, 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 61 °F on Friday, while the low is 29 °F on Tuesday. There are expected to be 2 sunny days and rain on 2 days this week.

There are currently no weather alerts.

Monday, December 8

- High of 41 °F, low of 35 °F (92% humidity)
- Overcast with a 100% chance of rain (4 mm of rain)
- Gentle breeze (12 mph wind)
- Sunrise at 7:14 AM, sunset at 5:12 PM
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Tuesday, December 9

- High of 44 °F, low of 29 °F (59% humidity)
- Sunny with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 7:15 AM, sunset at 5:12 PM
2 / 6
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Wednesday, December 10

- High of 58 °F, low of 36 °F (46% humidity)
- Partly cloudy with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (18 mph wind)
- Sunrise at 7:16 AM, sunset at 5:12 PM
3 / 6
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Thursday, December 11

- High of 53 °F, low of 42 °F (40% humidity)
- Mostly cloudy with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 7:16 AM, sunset at 5:12 PM
- Last quarter moon
4 / 6
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Friday, December 12

- High of 61 °F, low of 41 °F (36% humidity)
- Partly cloudy with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 7:17 AM, sunset at 5:13 PM
5 / 6
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Saturday, December 13

- High of 58 °F, low of 42 °F (48% humidity)
- Sunny with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (7 mph wind)
- Sunrise at 7:18 AM, sunset at 5:13 PM
6 / 6
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Sunday, December 14

- High of 45 °F, low of 39 °F (41% humidity)
- Overcast with a 100% chance of rain (1 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 7:18 AM, sunset at 5:13 PM

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