Boston August 21, 2023 11:38 am Tropical storm Hilary pummels Southern California Tropical storm Hilary brought rain, strong winds and mudslides across Southern California, blocking interstates and knocking out 911 services in some areas. US & World Videos 3:49 Wind bringing much colder weather to Boston area 3:29 Forecast: Chilly and breezy 3:14 Forecast: Chilly day Thursday 3:05 Forecast: Gusts continue, driving in colder temperatures 3:18 Weather forecast: Highs in the 40s after day of storms