Overview

• Nearly 80 million people in the US are under heat warnings, with temperatures nearing 100°F in the Midwest and Northeast.
• India's capital, Delhi, experiences severe heatwave conditions with temperatures soaring to 46°C, prompting red alerts.
• Boston and New York issue health advisories as temperatures rise, with heat indices making it feel even hotter.
• The UK braces for a potential heatwave next week, with temperatures expected to surpass seasonal averages.
• New tools and forecasts aim to help people prepare for and mitigate the health impacts of extreme heat.