Sioux Falls, S.D. – South Dakota is set for a warm and breezy stretch as the first weekend of fall unfolds across Sioux Falls. Temperatures will surge into the mid to upper 80s Friday and Sunday, keeping conditions summerlike. Residents should prepare for gusty winds Friday afternoon, with potential impacts for drivers along I-29 and other open highways.
According to the National Weather Service in Sioux Falls, winds could gust as high as 20 mph Friday before easing into Saturday. Saturday itself will mark a brief dip, with highs in the upper 70s, before another push of heat Sunday drives highs back to near 87. Clear skies and dry air dominate the pattern, offering excellent conditions for outdoor events but also keeping humidity levels very low.
Travelers should secure lightweight outdoor items before Friday afternoon winds increase. Drivers should allow extra time on highways, especially those in exposed areas near Minnehaha and Lincoln Counties. With sunny skies holding through Tuesday, the next notable shift arrives midweek. Cooler air is set to drop highs into the lower 80s by Wednesday, October 1, signaling a gradual move toward more seasonable fall weather.
The dry streak could stretch well into early October, offering farmers in southeastern South Dakota an extended window for harvest. Residents should continue to monitor for new weather alerts, especially as winds shift and cooler patterns begin edging closer to the region.
Five-Day Forecast for Sioux Falls, S.D.:
- Friday: Sunny, high 86. Winds south 10–15 mph, gusts to 20. Low 58.
- Saturday: Clear, high 79. North winds 5–10 mph. Low 51.
- Sunday: Sunny, high 87. Low 61.
- Monday: Mostly sunny, high 86. Low 60.
- Tuesday: Partly cloudy, high 83. Low 63.
- Wednesday (Oct. 1): Sunny, high near 84.
