FirstAlerts

Extreme Heat Warning Extended for Central Texas Through Sunday Evening

The National Weather Service in Austin has extended the Extreme Heat Warning for ten Central Texas counties, now in effect until 7 PM CDT Sunday.

4 reports on this incident · first at Aug 23, 2026, 12:19 a.m. ET

By AI ReporterWritten Aug 23, 2026, 12:40 a.m. ET
The National Weather Service (NWS) in Austin has extended the Extreme Heat Warning for Central Texas counties, now in effect until 7 PM CDT Sunday, August 24, 2026. The warning, originally set to expire earlier, now runs longer than first issued. A will follow from 7 PM Sunday to 7 PM CDT Wednesday, according to the NWS. Dangerously hot conditions are expected Sunday afternoon, with temperatures up to 107 degrees and heat index values up to 110. Temperatures up to 105 are expected Monday through Wednesday. The affected counties are Bastrop, Burnet, Caldwell, Fayette, Gonzales, Lavaca, Lee, Llano, Travis, and Williamson. The NWS advises drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. Heat-related illnesses increase significantly during extreme heat and high humidity events. Anyone overcome by heat should be moved to a cool and shaded location; heat stroke is an emergency and 9 1 1 should be called.

Earlier reports

  1. Aug 23, 2026, 12:35 a.m. ET

    Extreme Heat Warning in Effect for Llano, Burnet, Williamson Until Sunday

    The National Weather Service Austin has issued an Extreme Heat Warning for ten Central Texas counties, effective until 7 PM CDT Sunday, August 24, 2026. The warning, issued at 11:06 PM CDT on August 22, replaces the previous heat advisory and covers Bastrop, Burnet, Caldwell, Fayette, Gonzales, Lavaca, Lee, Llano, Travis, and Williamson Counties.

    Dangerously hot conditions are expected Sunday afternoon, with temperatures up to 107 degrees and heat index values up to 110. A Heat Advisory will follow from 7 PM Sunday to 7 PM CDT Wednesday, with temperatures up to 105 expected Monday through Wednesday.

    The National Weather Service warns that hot temperatures and high humidity may cause heat illnesses and recommends drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. Anyone overcome by heat should be moved to a cool and shaded location; heat stroke is an emergency and 9 1 1 should be called.

  2. Aug 23, 2026, 12:23 a.m. ET

    Heat-Related Illness Risk Rises as NWS Austin Warns of Dangerous Heat

    The National Weather Service Austin warns that hot temperatures and high humidity may cause heat illnesses, with heat-related illnesses increasing significantly during extreme heat and high humidity events.

    The warning is in effect for Bastrop, Burnet, Caldwell, Fayette, Gonzales, Lavaca, Lee, Llano, Travis, and Williamson Counties. An Extreme Heat Warning is in effect until 7 PM CDT Sunday, with dangerously hot conditions and heat index values up to 110 expected Sunday afternoon. A Heat Advisory follows from 7 PM Sunday to 7 PM CDT Wednesday, with temperatures up to 105 expected Monday through Wednesday. The date is August 24, 2026.

    The Weather Service recommends drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. It advises wearing lightweight and loose fitting clothing and limiting strenuous activities to early morning or evening. Anyone overcome by heat should be moved to a cool and shaded location; heat stroke is an emergency and 9 1 1 should be called.

  3. Aug 23, 2026, 12:19 a.m. ETFirst report

    National Weather Service Extends Flood Watch Through Late Monday Night for Llano, Burnet, Williamson

    The National Weather Service Austin has issued a Flood Watch for Bastrop, Burnet, Caldwell, Fayette, Gonzales, Lavaca, Lee, Llano, Travis, and Williamson Counties, in effect from 7 PM CDT Sunday, August 23, 2026, through 7 PM CDT Wednesday, August 26, 2026. The watch is in effect until late Monday night, August 24, 2026.

    Dangerously hot conditions are expected Sunday afternoon, with temperatures up to 107 degrees and heat index values up to 110 degrees. Temperatures up to 105 degrees are expected Monday through Wednesday. The watch was issued at 11:06 PM CDT on Saturday, August 22, 2026.

    The National Weather Service advises drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. It recommends wearing lightweight and loose-fitting clothing, limiting strenuous activities to early morning or evening, and taking action when symptoms of heat exhaustion or heat stroke appear. For outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency; call 9-1-1.

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Revision history

  1. Version 123 Aug 2026, 04:40current

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  2. Version 123 Aug 2026, 04:23current

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  3. Version 123 Aug 2026, 04:19current

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  4. Version 123 Aug 2026, 04:35current

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