Heat and humidity returns; chance of passing showing or thunderstorm Tuesday

NOW AND NEW: Storm Watch Team Meteorologist Steve Teeling says overnight will be mostly cloudy and muggy with some patchy fog. Tuesday will be partly sunny and humid with a passing shower or thunderstorm possible in a few towns. Highs will be in the upper-80s.
NEXT: It will pretty much stay hazy, hot and humid the rest of the week, with Thursday the hottest day. Highs will be in the mid-90s, with the heat index close to 100 degrees. On Friday, some scattered downpours and storms return to the region.
OVERNIGHT: Mostly cloudy and muggy with patchy fog. Low of 69.
TUESDAY: Partly sunny and humid with a passing shower or storm. High of 88.
WEDNESDAY: Hazy, hot and humid. High of 89.
THURSDAY: Hazy, very hot and humid. High of 96.
FRIDAY: Hazy, hot and humid with scattered storms. High of 90.
SATURDAY: Hazy and humid with scattered storms. High of 86.