June 18, 2018 4:35 am Hazy, Hot and Humid Monday: Hazy, hot and humid. Scattered strong afternoon thunder. Highs in the 90s, heat index around 100 degrees. Overnight Monday: Sticky, any thunder dwindles. Lows around 70. Tuesday: Warm and comfortable. Highs in the 80s. US & World Videos 4:04 Afternoon clouds over the region on Saturday 3:24 Weather forecast: Highs in the 50s 3:43 Look out for showers this afternoon in Boston 3:41 Cool air to linger over Boston into the weekend 3:17 Cooling back down, weekend turns wet in Boston