SIOUX FALLS, S.D. – A warm, breezy Sunday morning signals a classic early October stretch across eastern South Dakota, with sunshine and mild afternoons expected to last through much of the week. After several rounds of light showers this weekend, skies are clearing fast — and temperatures will climb toward 80 degrees by late Sunday afternoon, ideal for outdoor events and early Halloween decorating.
According to the National Weather Service in Sioux Falls, winds will remain brisk from the south, gusting up to 35 mph along I-29 and open rural areas this afternoon. Motorists pulling trailers or driving high-profile vehicles should use extra caution on east-west routes. Monday looks calmer and cooler, with highs in the lower 60s before temperatures rebound midweek.
Fire danger could rise slightly by Wednesday as humidity dips and gusts increase again across central and southern counties. However, the recent moisture will limit the overall risk. Warm sunshine continues Tuesday through Thursday, providing near-perfect conditions for farmers finishing harvests and families visiting pumpkin patches or local parks.
Residents should stay hydrated and secure lightweight outdoor items before gusty winds return by midweek. Looking ahead, the region remains dry through next weekend, with another stretch of 70s likely to close out the second week of October.
Five-Day Forecast for Sioux Falls, SD:
Mon: 62/42 – Partly sunny; light north breeze.
Tue: 69/44 – Sunny; calm winds, ideal outdoor day.
Wed: 71/53 – Sunny; breezy afternoon, low humidity.
Thu: 76/55 – Mostly sunny; warm for early October.
Fri: 76/56 – Partly cloudy; mild with light south wind.
