Weather July 22, 2017 5:30 pm Cloudy Until Morning 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 3:21 Weather forecast: Partly cloudy, with calm conditions 2:27 Warm and humid Monday in Boston 2:43 Gorgeous start to the week with warm air over New England 3:04 Forecast: Week will start off gorgeous 3:28 Forecast: Mostly cloudy, few showers tonight