A Dense Fog Advisory is in effect for all of Acadiana until 10:00 a.m. this Sunday morning. Visibility could stay below 1/4 of a mile for much of the area. The afternoon turns unseasonably hot and humid with highs in the upper 80s under mostly cloudy skies. The humidity will bring a heat index into the lower 90s. You can expect more of the same weather every day for the next week.