Sioux Falls, S.D. – South Dakota drivers should prepare for slick roads and sudden gusts up to 60 mph along I-29 tonight. Thunderstorm chances increase late this evening, with isolated hail and strong winds possible as a cold pocket of unstable air moves in.
According to the National Weather Service in Sioux Falls, confidence remains low on where storms will form. However, any storms that do develop may produce quarter-sized hail and dangerous wind gusts. Motorists are urged to use caution on major routes including I-29 and I-90, where heavy rain could quickly reduce visibility.
After tonight, conditions shift to a more stable and warm pattern. Tuesday will bring patchy fog early, then sunshine and highs near 82. Winds will remain lighter compared to tonight, reducing the risk of travel issues. By midweek, dry weather dominates, offering a quiet stretch through Thursday.
Storm chances return Friday night into the weekend, with another round of showers and thunderstorms possible. While widespread severe weather is not expected at this time, forecasters advise monitoring updates as patterns shift with early fall instability.
Residents should charge devices, secure loose outdoor items, and allow extra time for commutes tonight. NWS does not expect spotter activation but warns that conditions could change quickly.
Five Day Forecast for Sioux Falls, SD
- Tuesday: 30% chance of storms early, then mostly sunny. High 82.
- Wednesday: Mostly sunny. High 81.
- Thursday: Sunny, light winds. High 86.
- Friday: Partly sunny. High 88. Night storm chance.
- Saturday: 30% chance of showers and thunderstorms. High 87.
