forecast September 20, 2021 11:30 am Forecast: Sunshine, Highs Around 70 Monday Today: Brilliant sun, fall air. Highs around 70. Tonight: Cool, clear, quiet. Lows either side of 50. Tuesday: Quiet air, variable clouds. Highs around 70. US & World Videos 3:05 Partly cloudy, with summer-like temperatures 3:19 May 1 may be cloudy, but we have optimism for the rest of Boston's forecast 3:41 Sun will slowly chew away at the cloud cover this afternoon 3:08 Light rain and calmer weather in New England 2:39 Weather forecast: Scattered morning rain, with steady temps