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Weather / Heat Advisory

Moderate

Heat Advisory issued August 24 at 1:10PM CDT until August 25 at 7:00PM CDT by NWS Houston/Galveston TX

Houston; Trinity; Madison; Walker; San Jacinto; Polk; Burleson; Brazos; Washington; Grimes; Montgomery; Northern Liberty; Colorado; Austin; Waller; Inland Harris; Chambers; Wharton; Fort Bend; Inland Jackson; Inland Matagorda; Inland Brazoria; Inland Galveston; Southern Liberty; Coastal Harris; Coastal Jackson; Coastal Matagorda; Coastal Brazoria; Coastal Galveston; Matagorda Islands; Brazoria Islands; Galveston Island; Bolivar Peninsula

Urgency: Expected
Certainty: Likely
Onset: 8/24/2026, 6:10:00 PM
Expires: 8/25/2026, 7:00:00 AM

Details

* WHAT...Peak heat index values up to 109. * WHERE...Portions of south central and southeast Texas. * WHEN...Until 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Hotter conditions are expected on Wednesday with afternoon temperatures generally in the triple digits and peak heat indices in the 106 to 112 F range. This Heat Advisory will likely need to be extended through midweek.

What To Do

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during 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.

Affected States

Other Active Heat Advisory Alerts

Heat Advisory issued August 24 at 3:56PM AST until August 24 at 4:00PM AST by NWS San Juan PR
San Juan and Vicinity; Northeast; Southeast; North Central; Ponce and Vicinity; Northwest; Mayaguez and Vicinity; Southwest; Culebra; Vieques; St.Thomas...St. John.. and Adjacent Islands; St Croix
Heat Advisory issued August 24 at 12:44PM PDT until August 27 at 8:00PM PDT by NWS Los Angeles/Oxnard CA
San Luis Obispo County Inland Central Coast; Santa Barbara County Inland Central Coast; Santa Ynez Valley
Heat Advisory issued August 24 at 12:44PM PDT until August 25 at 10:00AM PDT by NWS Los Angeles/Oxnard CA
Cuyama Valley
Heat Advisory issued August 24 at 12:44PM PDT until August 25 at 10:00AM PDT by NWS Los Angeles/Oxnard CA
Catalina and Santa Barbara Islands; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Ventura County Beaches; Ventura County Inland Coast; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles
Heat Advisory issued August 24 at 12:44PM PDT until August 25 at 10:00AM PDT by NWS Los Angeles/Oxnard CA
Santa Clarita Valley; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Southeastern Ventura County Valleys; Santa Susana Mountains; Southern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Los Angeles County San Gabriel Valley

Source: National Weather Service.

Heat Advisory — Houston; Trinity; Madison; Walker; San Jacinto; Polk; Burleson; Brazos; Washington; Grimes; Montgomery; Northern Liberty; Colorado; Austin; Waller; Inland Harris; Chambers; Wharton; Fort Bend; Inland Jackson; Inland Matagorda; Inland Brazoria; Inland Galveston; Southern Liberty; Coastal Harris; Coastal Jackson; Coastal Matagorda; Coastal Brazoria; Coastal Galveston; Matagorda Islands; Brazoria Islands; Galveston Island; Bolivar Peninsula | Now in USA