Mississippi River Realtime Data

× Heat Advisory
Until 2026-08-11T03:30:00-05:00 • National Weather Service
* WHAT...Heat index values of 100 to 105 expected. * WHERE...Portions of west central Illinois, southeast Iowa, and northeast Missouri. * WHEN...From noon to 8 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Heat indices may briefly exceed 105 degrees in some areas.