First Alert Weather September 19, 2022 11:37 pm Weather Forecast: Cloudy With Scattered Afternoon Showers Monday night: Early downpours and thunder depart for mostly cloudy skies, patchy fog. Lows in the 50s. Tuesday: Mostly cloudy with scattered afternoon showers. Highs in the 60s. US & World Videos 2:32 Cool air, scattered rain in store for Boston 2:55 Much cooler temps Tuesday, with scattered rain 2:44 Weather forecast: Scattered morning rain 3:21 Weather forecast: Partly cloudy, with calm conditions 2:27 Warm and humid Monday in Boston