Sioux Falls 7-day weather forecast

Written by:
March 23, 2026
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 Friday, while the low is 41 °F on Monday. There are expected to be 2 sunny days and rain on 3 days this week.

NWS Sioux Falls SD has issued a frost advisory until Monday at 09:00 AM.

Monday, May 11

- High of 76 °F, low of 41 °F (31% humidity)
- Partly sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 6:06 AM, sunset at 8:40 PM
1 / 6
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Tuesday, May 12

- High of 73 °F, low of 56 °F (29% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Fresh breeze (24 mph wind)
- Sunrise at 6:05 AM, sunset at 8:41 PM
2 / 6
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Wednesday, May 13

- High of 76 °F, low of 49 °F (27% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (7 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:04 AM, sunset at 8:42 PM
3 / 6
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Thursday, May 14

- High of 80 °F, low of 55 °F (37% humidity)
- Partly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Fresh breeze (24 mph wind)
- Sunrise at 6:03 AM, sunset at 8:43 PM
4 / 6
Cari Rubin Photography // Shutterstock

Friday, May 15

- High of 90 °F, low of 62 °F (37% humidity)
- Mostly cloudy with a 100% chance of rain (2 mm of rain)
- Fresh breeze (19 mph wind)
- Sunrise at 6:02 AM, sunset at 8:44 PM
5 / 6
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Saturday, May 16

- High of 83 °F, low of 60 °F (36% humidity)
- Sunny with a 100% chance of rain (1 mm of rain)
- Gentle breeze (12 mph wind)
- Sunrise at 6:01 AM, sunset at 8:45 PM
- New moon
6 / 6
Alex Linch // Shutterstock

Sunday, May 17

- High of 80 °F, low of 62 °F (45% humidity)
- Mostly cloudy with a 59% chance of rain (1 mm of rain)
- Moderate breeze (14 mph wind)
- Sunrise at 6:00 AM, sunset at 8:46 PM

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