Boston September 12, 2019 11:20 pm Weather Forecast: Sunny and Cool Thursday night: Moonlit and cool. 40s to low 50s. Friday: Mostly sunny and cool. Low to mid 60s. Steady northeast breeze. Saturday: Partly sunny & breezy. Slight chance of a passing late day shower. Mid 70s. US & World Videos 3:43 Look out for showers this afternoon in Boston 3:27 A lot cooler in New England Friday 3:02 Dry and cooler in our region, with temps in the mid-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