Houston extreme heat (Summer 2026): cooling centers, 3-1-1 help & steps
CFTH’s July 9, 2026 extreme-heat hub for Houston/Harris County shows where cooling centers are, heat-stroke signs, and 3-1-1 ride rules.
Extreme heat can become life-threatening fast in Houston. The City of Houston Office of Emergency Management says the Houston area has dangerously hot summers, and it ranks Houston as the fourth most intense U.S. city for urban heat island intensity. A new Houston-area nonprofit guide published July 9, 2026 is designed to help residents find cooling-center information quickly and understand what help may be available during a City heat emergency.
Why this guide matters right now
Houston-area heat safety isn’t just about comfort. Heat can lead to heat exhaustion or heat stroke—especially for people without reliable cooling at home or anyone who can’t safely travel to an air-conditioned place during dangerous heat.
The Community Foundation of Houston’s “Extreme Heat Resources | Summer 2026” hub is a connector to official cooling-center tools and the City’s heat emergency response guidance, including how 3-1-1 transportation can work for people experiencing homelessness.
Step 1: Find cooling centers before the hottest hours
City of Houston cooling-center map (when the City has a heat advisory). Houston OEM directs residents to check the City’s Cooling Center Map on its Extreme Heat page when the City is under a heat advisory.
Harris County cooling-center locations. ReadyHarris provides “Cooling Center Locations” information. The page notes the data is provided by Harris County Public Health and is based on information received from cities and utility districts—so when you’re traveling during an emergency, use the most current guidance available.
Step 2: Know heat-illness warning signs—and when to call 9-1-1
Houston OEM lists heat illness warning signs such as unusual heavy sweating, shortness of breath, dizziness, headaches, muscle cramping, nausea, and weakness.
For first response, Houston OEM advises moving the person to a cooler place and using a wet, cool cloth on the back of the neck. If the person is showing signs of heat stroke, the guidance says to dial 9-1-1 immediately.
Houston Health Department’s heat-stroke signs include a throbbing headache; red, hot, and dry skin (no longer sweating); extremely high body temperature (above 103°); nausea or vomiting; confusion; loss of consciousness; and a rapid, strong pulse. If those symptoms occur, call 9-1-1 immediately and work to lower the person’s body temperature until help arrives.
Step 3: Transportation help during a City heat emergency (3-1-1 rules)
If you don’t have adequate transportation to a designated cooling center during a City heat emergency, Houston Health Department says you can call 3-1-1 to request a free ride.
Important limits:
- Transportation is only to and from the City cooling centers.
- Transportation to other locations is unavailable.
- Eligibility and current transportation information are handled through 3-1-1 during the heat emergency conditions described by the City.
For live assistance through the City, Houston 311’s “City Functions A to Z” page says to dial 311. Some mobile users or people outside the Houston area may need to dial 713.837.0311.
Step 4: If the heat emergency plan isn’t activated, you can still seek air-conditioning
Houston Health Department says people may seek air-conditioning in city multi-service centers, libraries, and recreation centers even when the Public Health Heat Emergency Plan isn’t activated. For more information or to find the nearest cooling center location or an air-conditioned city facility, the guidance says people can call 3-1-1.
Quick checklist for the next heat spike
- Bookmark the City cooling-center map and check it when Houston is under a heat advisory.
- Use ReadyHarris for Harris County cooling-center locations, but rely on the most current emergency guidance during alerts.
- If someone may be having heat stroke symptoms (including above 103° or loss of consciousness), call 9-1-1 immediately.
- If you need a ride to a designated City cooling center during a City heat emergency and you don’t have adequate transportation, call 3-1-1—transportation limits apply.
Sources
- Community Foundation of Houston: “Extreme Heat Resources | Summer 2026” (published July 9, 2026)
- ReadyHarris: Cooling Center Locations (provided by Harris County Public Health)
- City of Houston Office of Emergency Management: Extreme Heat (Cooling Center Map + heat advisory guidance)
- Houston Health Department: City heat emergency plan (3-1-1 free ride + who it serves)
- Houston 311: City Functions A to Z (how to reach live assistance)
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