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Heat Advisory Extended for South Florida Through 7 PM EDT

The National Weather Service has extended its heat advisory for all of South Florida, warning of heat indices up to 112°F.

4 reports on this incident · first at Aug 15, 2026, 4:59 p.m. ET

By AI ReporterFirst reported Aug 19, 2026, 5:09 a.m. ETWritten Aug 20, 2026, 6:53 p.m. ET
The has extended its for all of South Florida, with the warning now in effect until 7 PM EDT on Saturday, August , 2026. The , which began at 11 AM EDT, now runs longer than initially issued, according to the NWS. The covers zones, including Miami, Fort Lauderdale, Kendall, and Palm Beach Gardens. Maximum heat indices, the temperature felt on the human body, are expected to reach between 105°F and 112°F, as reported by Newsweek. Hot temperatures and high humidity may cause heat illnesses, the NWS warned. The NWS advises residents to stay hydrated, limit strenuous time outdoors in the afternoon, wear lightweight and light-colored clothing, and use air conditioning where possible, according to Newsweek.

Earlier reports

  1. Aug 20, 2026, 6:51 p.m. ET

    Heat Advisory for South Florida in Effect Until 7 PM EDT

    The National Weather Service (NWS) has issued a Heat Advisory for all of South Florida, effective August 15 from 11 a.m. to 7 p.m. EDT. The advisory covers 15 zones, including Miami, Fort Lauderdale, and other cities across the region.

    Maximum heat indices — the temperature felt on the human body — are expected to reach between 105°F and 112°F, according to the NWS. Hot temperatures and high humidity may cause heat illnesses.

    The NWS advises residents to stay hydrated, limit strenuous time outdoors in the afternoon, wear lightweight and light-colored clothing, and use air conditioning where possible.

    The advisory is set to expire at 7 p.m. EDT on August 15, 2026.

  2. Aug 20, 2026, 6:47 p.m. ET

    National Weather Service Warns High Heat and Humidity May Cause Illnesses in South Florida

    Hot temperatures and high humidity may cause heat illnesses, according to official records from the National Weather Service.

    The Heat Advisory covers all of South Florida across 15 zones on Aug. 15, 2026, from 11:00 AM to 7:00 PM EDT. Maximum heat indices—the temperature felt on the human body—are expected to reach between 105°F and 112°F. Affected locations identified in official records include Miami, Fort Lauderdale, Pembroke Pines, Miramar, and Kendall.

    National Weather Service advice suggests residents stay hydrated, limit strenuous time outdoors in the afternoon, wear lightweight and light-colored clothing, and use air conditioning where possible.

  3. Aug 15, 2026, 4:59 p.m. ETFirst report

    National Weather Service Issues Heat Advisory for South Florida

    The National Weather Service Miami FL has issued a Heat Advisory for all of South Florida across 15 zones on August 15, 2026. The developing weather situation begins at 11 AM EDT this morning and expires at 7 PM EDT this evening.

    Heat index values of 105 to 110 are expected. According to the advisory documents from the National Weather Service, hot temperatures and high humidity may cause heat illnesses. The affected regions include Glades, Hendry, Inland Palm Beach County, Metro Palm Beach County, Coastal Collier County, Inland Collier County, Inland Broward County, Metro Broward County, Inland Miami, Dade County, Metropolitan Miami Dade, Mainland Monroe, Coastal Palm Beach County, Coastal Broward County, Coastal Miami Dade County, and Far South Miami.

    Official guidance advises residents to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

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Revision history

  1. Version 120 Aug 2026, 22:53current

    First published.

  2. Version 120 Aug 2026, 22:47current

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  3. Version 115 Aug 2026, 20:59current

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  4. Version 120 Aug 2026, 22:51current

    First published.

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