forecast May 21, 2020 6:49 am Sunny and 75 Thursday Today: Mostly sunny and mild. Highs in the 70s. Overnight Thursday Night: Clear with lows around 50. Friday: Summer-like warmth with sun. Highs around 80. US & World Videos 2:29 Weather forecast: Partly cloudy with highs in 60s 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 2:38 Boston will see some sunshine in the afternoon 2:39 Weather forecast: Scattered morning rain, with steady temps