Metro Detroit weather: Monitoring a Sunday severe weather threat, Aug. 28, 2021, 11 p.m. update

Highs Sunday near 90 degrees (32 degrees Celsius), with the afternoon heat index reaching at least the mid 90s (35 degrees Celsius). Although the National Weather Service has not issued a Heat Advisory for Sunday, it’ll be close to that criterion, so stay hydrated and be careful not to overdo it tomorrow if you’ll be outside for an extended period of time.