Weather July 22, 2017 6:35 pm Cool, Sunny Sunday Tonight: Mainly cloudy. Warm. Lows near 70. Sunday: Early clouds clear. Afternoon sun. Cooler. Highs in the mid 70s. Monday: Cloudy. Periods of rain, locally heavy. Highs near 70. US & World Videos 3:17 Cooling back down, weekend turns wet in Boston 3:02 Dry and cooler in our region, with temps in the mid-50s 3:20 Weather forecast: Highs in the 50s 3:11 The weather's great, but the wheels come off the forecast by the weekend 3:14 Weather forecast: Highs near 70 degrees