Boston July 31, 2018 9:41 pm Weather Forecast: Spotty Thunderstorms Tuesday night: Muggy. Maybe a shower by dawn. Lows around 70. Wednesday: Spotty thunderstorms. Humid. Highs in the low 80s. Thursday: Mix sun & clouds. Downpours inland. Highs around 90. US & World Videos 3:59 Forecast: Showers this weekend, then another nice stretch of weather 3:34 Forecast: Tracking a few showers this weekend 3:44 Weather forecast: Highs in the 70s 3:21 Weather forecast: Drizzly night 3:19 Wet weekend won't be a total washout