Boston June 18, 2024 11:23 pm First Alert: Heat intensifies Tuesday night: Warm and muggy. Partly cloudy. Low: 71. Wednesday: First Alert. Hot and humid. Partly cloudy. High: 95. Thursday: First Alert. Sunny. Hot. Afternoon shower. High: 99. US & World Videos 4:01 Forecast: Cool, quiet and dry 2:29 Forecast: Fire weather threat remains, weekend cool down ahead 2:49 Forecast: Light rain, cooler temps on Thursday 3:25 Forecast: Temps drop back to 60s Thursday 4:08 Forecast: Tracking cooler weather on the way