Sioux Falls, SD – South Dakota wakes to calm, cool air this Sunday, but that quiet won’t last much longer. By Monday, brisk winds and falling temperatures will mark a quick transition toward the region’s first early cold snap of the season.
According to the National Weather Service in Sioux Falls, highs will climb to around 62°F Monday before northwesterly gusts sweep across Minnehaha County. Winds could reach 35 to 40 mph, making travel on I-29 and Highway 42 tricky for high-profile vehicles. Early commuters should brace for strong crosswinds and blowing dust across open farmland.
Tuesday brings a noticeable chill. Temperatures will struggle to reach the low 50s under mostly sunny skies, while morning lows may flirt with freezing near rural valleys west of town. For now, no snow is expected, but forecasters say this pattern could be an early sign of frost potential later in the week.
The coldest air arrives Wednesday morning, with lows near 30°F — enough to nip late gardens and outdoor plants. Residents planning to finish yard cleanup or install holiday lights may want to use Monday’s warmth before the brisk air settles in.
By Thursday and Friday, conditions stabilize under bright skies, with highs recovering into the upper 50s and low 60s. It’s a classic late-October swing: windy, cold, then crisp and clear again — a reminder that winter isn’t far off.
