Millions from the Plains to the Northeast are under heat alerts as temperatures and humidity values soar. CNN Meteorologist Pedram Javaheri has the forecast. https://cnn.it/3kjOxdP | CNN Weather

32 states currently have heat advisories or warnings posted as dangerous temperatures expand across the US while severe storms threaten the Midwest once again. https://cnn.it/37zhNay | CNN Weather

Meteorologist Allison Chinchar has an update on the timing of today's severe storms. Track the storms: https://cnn.it/3stYZ5r Get the latest: https://cnn.it/3vA5Uen | CNN Weather