Weather in Sioux Falls, United States 🇺🇸
Weather Forecast in Sioux Falls
Right now Sioux Falls is 26°C with clear, feeling like 27°C. Humidity sits at 54% and winds are near 21 km/h, and the UV index is 0 (low). The next few days in Sioux Falls look set for about 16°C up to 38°C. ⚠️ Heat Advisory issued July 20 at 8:00AM CDT until July 20 at 8:00PM CDT by NWS Sioux Falls SD
Hourly Forecast for Sioux Falls
14-Day Forecast for Sioux Falls
Additional Forecasts for Sioux Falls
Air Quality
Historical Weather
Weather Forecasts for Other Cities in United States
Browse Weather in United States by cities in alphabetical order:
Best Time to Be Outside in Sioux Falls Tomorrow
There is no good daylight window left in Sioux Falls today. Tomorrow, the most comfortable window looks like 09:00 to 11:00, when it is around 22°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in Sioux Falls
What is the temperature in Sioux Falls right now?
It is currently 26°C (79°F) in Sioux Falls, clear (feels like 27°C).
What's the weather like in Sioux Falls right now?
Right now Sioux Falls has Clear, humidity 54%, wind 21 km/h N.
What is today's forecast for Sioux Falls?
Today in Sioux Falls: high 38°C, low 24°C, sunny. Chance of rain: 3%.
What is the 7-day weather forecast for Sioux Falls?
Daily highs and lows for Sioux Falls:
- 2026-07-20: 38°C / 24°C
- 2026-07-21: 31°C / 19°C
- 2026-07-22: 25°C / 16°C
- 2026-07-23: 23°C / 13°C
- 2026-07-24: 22°C / 14°C
- 2026-07-25: 40°C / 16°C
- 2026-07-26: 39°C / 22°C
Is it going to rain in Sioux Falls today?
There is a 3% chance of rain in Sioux Falls today.
What is the wind speed in Sioux Falls right now?
Wind in Sioux Falls is currently 21 km/h (13 mph) from the N.
What is the UV index in Sioux Falls right now?
The UV index in Sioux Falls is currently 0 (low). Sun protection is recommended when the index is 3 or higher.