Overview

• Boston’s heat emergency, the city’s second this summer, is in effect through Friday with National Weather Service advisories lasting until Thursday evening.
• Dew points hovering in the mid-70s are pushing daytime highs in the low 90s to feels-like temperatures near 100°F.
• All 36 BCYF centers along with public libraries, pools and splash pads are open as cooling centers during their usual operating hours.
• Saturated air has increased the chance of spot afternoon downpours and isolated flash flooding in western New England.
• Air quality alerts have been issued in northern areas as smoke drifts south from Canadian wildfires.