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Sioux Falls, South Dakota Weather:
Thursday, August 21, 2025
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 81°
Night 66°
Precipitation 25 %
Wind 12 mph
UV Index (0 - 11+) 7

Weather Forecast History

Last Year's Weather on This Day (August 21, 2024)

Cloudy WeatherCloudy weather, overcast skies with clouds.

Day

75°

Night

63°

Wind

15 mph

UV Index

4

Precipitation

25