Sioux Falls, South Dakota – Drivers in eastern South Dakota should brace for limited visibility early Monday as patchy fog lingers through 10 a.m., particularly along I-29 and other rural roads near Sioux Falls. Gusts could reach 20 mph by mid-morning, with cooler air keeping temperatures capped near 70 degrees.
According to the National Weather Service, fog will be most widespread between 7 a.m. and 10 a.m. Monday, followed by clearing skies and light winds shifting northward. Morning commuters are urged to slow down, use headlights, and allow extra time, especially on elevated roadways and bridges, which may stay slick longer due to trapped moisture.
By Monday afternoon, skies will turn clear and winds will calm, setting up a pleasant start to the final week of August. Temperatures will climb gradually through the mid-70s by Tuesday, peaking in the upper 70s by Thursday across Minnehaha County and surrounding areas. No major storm systems are expected through the week.
While mornings will remain crisp—lows dipping into the mid-40s—daytime hours will bring ideal outdoor conditions. Increasing clouds return by Tuesday night but no rain is expected through Friday.
Stay tuned for potential advisories if fog thickens again midweek or if winds shift with incoming humidity.
Five Day Forecast for Sioux Falls, SD:
- Monday: Fog early, then sunny. High 70°F, low 46°F.
- Tuesday: Sunny, high 74°F. Clouds increase at night, low 54°F.
- Wednesday: Partly sunny, high 78°F, low 56°F.
- Thursday: Mostly sunny and warmer. High 78°F, low 57°F.
- Friday: Partly sunny, high near 76°F. Mostly cloudy Friday night, low around 59°F.
