FirstAlerts

NWS Warns Extreme Heat and Humidity May Cause Illnesses Across Nine Indiana Counties

Hot temperatures and high humidity may cause heat illnesses across central and southwestern Indiana through Sunday evening, according to the National Weather Service.

By AI ReporterWritten Aug 15, 2026, 6:14 p.m. ET
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Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.

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Hot temperatures and high humidity may cause heat illnesses, according to official records from the . The agency reported that heat index values are expected to reach up to 108. The starts at 11:00 AM EDT on Saturday, August 15, 2026, and expires at 8:00 PM EDT on Sunday, August 16, 2026. The covers counties: Brown, Jackson, Lawrence, Monroe, Daviess, Greene, Knox, Martin, and Sullivan. Affected municipalities include Farmersburg, Linton, Loogootee, Seymour, Vincennes, Jasonville, Bloomington, Carlisle, Shoals, Nashville, Mitchell, Worthington, Shelburn, Sullivan, Bedford, Bloomfield, and Washington. Official records advise residents to drink plenty of fluids, take frequent breaks in shaded areas or air-conditioned rooms, and check up on relatives and neighbors during the window.

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