Sioux Falls, S.D. – A stretch of calm late-summer weather in eastern South Dakota will give way to unsettled skies this weekend as thunderstorms build across the region beginning Saturday.
According to the National Weather Service in Sioux Falls, showers and storms could begin developing after 1 p.m. Saturday, with the strongest activity expected late in the evening. Rain chances remain near 50 percent Saturday night, and showers are likely to linger through Sunday night before easing into Labor Day.
The storm threat could impact travel across Minnehaha, Lincoln, and surrounding counties, with localized downpours reducing visibility and creating slick roads. Winds will remain light but shifting, keeping moisture in place to fuel scattered storms. Temperatures will drop into the upper 50s to low 60s overnight, keeping conditions muggy and damp.
By Sunday, cooler highs near 70 will settle in, with showers possible into Monday morning. Outdoor Labor Day events may see interruptions, though drier conditions should return by Tuesday.
Residents planning weekend activities should keep alternate indoor options in mind and avoid driving during heavy downpours. The weather service says additional updates are possible if storms strengthen.
Five Day Forecast for Sioux Falls, S.D.
- Friday: Partly sunny, high near 79. Slight chance of thunderstorms late. Low 61.
- Saturday: Thunderstorms likely afternoon into night. High 74, low 60.
- Sunday: Showers likely, high near 70. Low 58.
- Labor Day: Partly sunny, high near 73. Low 57.
- Tuesday: Partly sunny with showers possible. High 71.
