Sioux Falls, S.D. – Drivers across eastern South Dakota, northwest Iowa, and southwest Minnesota may face patchy fog overnight, with the thickest conditions developing along and east of Interstate 29. Some areas could see visibility drop below a half-mile, creating hazards for late-night travel.
According to the National Weather Service in Sioux Falls, the lowest visibility is expected in parts of southwestern Minnesota, though pockets of dense fog will stretch into northeast Nebraska and central South Dakota. Motorists are urged to slow down, use low beams, and allow extra space between vehicles if traveling before sunrise Tuesday.
By midmorning Tuesday, fog should lift quickly as skies turn mostly sunny. Temperatures will rise into the upper 80s through midweek, with calm winds shifting to a light southeast breeze. The quiet stretch holds until Thursday night, when a 40% chance of thunderstorms could bring brief downpours and lightning to the Sioux Falls metro and surrounding counties.
Conditions turn drier and cooler into the weekend, with highs in the upper 70s to low 80s and lows dipping into the low 50s by Friday night.
Hazardous weather beyond tonight’s fog is not expected until late Thursday. Additional updates will be issued if storm chances increase.
Five Day Forecast for Sioux Falls, SD
- Tuesday: Patchy fog early, then sunny. High near 87. Low around 66.
- Wednesday: Sunny. High near 86. Low around 65.
- Thursday: Sunny, high near 86. Chance of thunderstorms at night. Low near 66.
- Friday: Mostly sunny, high near 80. Low near 55.
- Saturday: Sunny, high near 76. Low around 51.
