Sioux Falls 7-day weather forecast

Written by:
August 25, 2025
ESOlex // Shutterstock

Sioux Falls 7-day weather forecast

Stacker created the forecast for Sioux Falls, South Dakota using data from OpenWeather. This week's high is 90 °F on Wednesday, while the low is 48 °F on Monday. There are expected to be 3 sunny days and rain on 4 days this week.

There are currently no weather alerts.

Monday, August 25

- High of 73 °F, low of 48 °F (27% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:43 AM, sunset at 8:14 PM
1 / 6
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Tuesday, August 26

- High of 81 °F, low of 48 °F (27% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (7 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:44 AM, sunset at 8:13 PM
2 / 6
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Wednesday, August 27

- High of 90 °F, low of 57 °F (34% humidity)
- Mostly cloudy with a 100% chance of rain (2 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:45 AM, sunset at 8:11 PM
3 / 6
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Thursday, August 28

- High of 85 °F, low of 58 °F (30% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (7 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 6:46 AM, sunset at 8:09 PM
4 / 6
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Friday, August 29

- High of 86 °F, low of 55 °F (42% humidity)
- Mostly cloudy with a 100% chance of rain (5 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 6:47 AM, sunset at 8:08 PM
5 / 6
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Saturday, August 30

- High of 67 °F, low of 61 °F (93% humidity)
- Overcast with a 100% chance of rain (4 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:48 AM, sunset at 8:06 PM
6 / 6
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Sunday, August 31

- High of 71 °F, low of 61 °F (86% humidity)
- Overcast with a 100% chance of rain (5 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 6:50 AM, sunset at 8:04 PM
- First quarter moon

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