Boston July 29, 2019 12:40 pm Weather Forecast: Heat and Scattered Thunderstorms Monday: Hot, humid, chance of thunder later. Highs in the 90s. Monday night: Warm, humid. Lows in the 70s. Tuesday: Continued heat and humidity. Highs in the 90s. 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