Boston September 28, 2021 11:44 pm Weather Forecast: Cool Fall Air Tuesday night: Southeastern Massachusetts showers. Lows in the 40s, 50s southeast. Wednesday: Cool fall air, fair sky, chance afternoon sprinkle. Highs 60-65. US & World Videos 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 3:02 Dry and cooler in our region, with temps in the mid-50s