NWS forecast: Dangerous heat wave to stretch through Aug. 20 in West Tennessee

By: Cassandra Stephenson

Outlets: Tennessee Lookout

Published: August 17, 2026

Words: 432

Last Updated: 1 day, 11 hours ago

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The National Weather Service expects a dangerous heat wave to continue through Aug. 20 in West Tennessee.

In Memphis, the maximum heat index — what the temperature feels like to the human body — is expected to remain at or above 107 degrees through Thursday. Heat indices in more rural areas of the state are also forecast to exceed 100 degrees for most of the week.

The agency issued an extreme heat warning for …

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