forecast July 3, 2024 4:31 pm Humid July 4 ahead for Boston, with a chance of storms Overnight Wednesday night: Dry. Increasing Clouds. Low: 64. Thursday (July 4) Sun & Clouds. Isolated Showers. High: 84. Friday: Morning Rain. Partly Cloudy. High: 83. US & World Videos 3:56 Scattered showers in Greater Boston on Saturday 3:01 Weather forecast: Wet start to weekend 3:40 Weather forecast: Temperatures in the 60s 3:23 Weather forecast: Rain lingers into night 3:42 Forecast: Rain, coastal flooding expected this weekend