Crabtree Nature Center Realtime Data

× Heat Advisory
Until 2026-09-04T13:00:00-05:00 • National Weather Service
* WHAT...Peak heat index values this afternoon of 100 to locally 110 degrees. * WHERE...Portions of north central and northeast Illinois and northwest Indiana. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.