Sioux Falls, S.D. – Early fall drivers across South Dakota face a potentially dangerous commute Tuesday and Wednesday with patchy fog reducing visibility along U.S. Highway 20 and near the South Dakota–Minnesota border. Motorists are urged to slow down, use low beams, and allow extra travel time during the morning drive.
According to the National Weather Service in Sioux Falls, spotty showers are possible Tuesday morning, but the bigger concern is fog. Reduced visibility could extend into mid-morning across southern Minnesota and neighboring South Dakota counties. Rapid shifts in conditions mean commuters should be prepared for sudden slowdowns.
While the week starts damp, skies clear quickly. By Thursday, South Dakota enjoys a stretch of sunshine with highs climbing into the low- to mid-80s. Sioux Falls will see highs of 78 degrees Tuesday, rising to 84 degrees Friday, with calm winds and clear nights. Cooler overnight lows in the low-50s provide an early taste of fall before the afternoon heat builds again.
Travelers and residents should remain alert through Wednesday morning but can look forward to steady sunshine as September’s final weekend approaches. No major cold snaps are expected yet, though forecasters note this transition period often brings abrupt weather shifts.
Warnings remain in effect for patchy fog Tuesday into Wednesday morning. Residents should stay weather aware, especially during early commutes, as additional advisories could be issued if visibility worsens.
Five Day Forecast for Sioux Falls, South Dakota
- Tuesday: High 78, patchy morning fog, mostly sunny. Low 55.
- Wednesday: High 78, sunny. Low 53, clear skies.
- Thursday: High 82, sunny with calm winds. Low 54.
- Friday: High 84, sunny and warm. Low 55, clear.
- Saturday: High 79, sunny. Low 52.
