* WHAT…Heat index values up to 109 degrees are expected. * WHERE…All of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN…From 11 AM CDT /noon EDT/ this morning to 8 PM CDT /9 PM EDT/ this evening. * IMPACTS…Hot temperatures and high humidity may cause heat illnesses.
Source: National Weather Service
Indexed: Wed, 09 Sep 2026 10:16:05 UTC
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