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A safe heat plan is agreed with the older adult and their clinician before hot weather arrives. It names a dependable air-conditioned place and a backup, sets individualized fluid and medication instructions, covers power outages, assigns check-in responsibilities, and uses the CDC HeatRisk forecast and local air-quality information to adjust activity. Caregivers should check on people in their care at least twice a day and arrange immediate medical care when heat-illness symptoms appear.
This guide is based on U.S. Centers for Disease Control and Prevention (CDC) guidance. Local cooling sites, transport, operating hours, and emergency resources vary, so verify them for the person’s location.
Why a personal plan matters
People respond to heat differently. Adults aged 65 and older are more prone to heat-related health problems, but age is only one part of the risk. Chronic illness, medicines, disability, social isolation, housing conditions, and access to reliable cooling can change what is safe for one person compared with another.
A plan is especially important when someone lives alone, cannot easily leave home, has trouble sensing thirst or heat, depends on electricity for medical equipment, or has a clinician-directed fluid limit. The plan should be written in plain language, reviewed with the person who will use it, and shared with the caregiver or backup contact who may need to act.
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Risk questions to answer before summer
- Does the home have dependable air conditioning, and can the person operate it safely?
- How hot does the home become during a typical heat event, including overnight?
- Can the person reach a nearby air-conditioned location if the home becomes unsafe?
- Are there mobility, cognitive, hearing, vision, or communication needs that affect leaving home or asking for help?
- Which chronic conditions, prescriptions, over-the-counter medicines, or supplements could affect sweating, thirst, blood pressure, hydration, electrolytes, or temperature regulation?
- Who can provide transport, a welfare check, or help during a power outage?
- What outdoor work, appointments, exercise, or caregiving duties are likely during hot weather?
These questions reflect the domains in CDC clinician heat-planning materials: housing and indoor conditions, air-conditioning access, emergency support, understanding of medicines and heat, and expected outdoor exposure.
Build the plan before hot weather
1. Name a primary and backup cooling location
The primary option may be the person’s home if it has reliable air conditioning. A backup should be an air-conditioned place the person can actually reach, such as a relative’s home, a public cooling site, or another local facility. Do not wait for a heat emergency to discover that a site is closed or inaccessible.
In the United States, CDC points people toward 2-1-1, local health departments, emergency-management agencies, and cooling-center listings. Call or check the current local listing to confirm:
- Opening dates and hours during the expected heat event.
- Address, entrance accessibility, seating, restrooms, and any registration rules.
- Whether service animals, mobility devices, and a caregiver are accommodated.
- Available transport, return-trip arrangements, and what to do if public transport stops operating.
- Whether the site remains open during a power outage or severe air-quality event.
Record the address and phone number on paper as well as in a phone. Keep a transport plan that does not depend on the person driving in extreme heat if driving ability, vision, or health is a concern.
2. Review medicines with a clinician or pharmacist
Some medicines can increase heat risk by changing thirst, sweating, temperature regulation, blood pressure, hydration, or electrolyte balance. CDC materials identify diuretics (water pills), anticholinergic medicines, and some psychotropic medicines as classes that may require attention. The effect depends on the specific drug, dose, combination, and the person’s health.
Make a current list of prescriptions, over-the-counter products, and supplements, including dose and timing. Ask the prescribing clinician or pharmacist:
- Does any medicine change the person’s response to heat or increase dehydration risk?
- Should the timing of outdoor activity, meals, or monitoring change on hot days?
- How should the medicine be stored if the home or refrigerator loses power?
- Which symptoms require a call to the clinician and which require immediate medical care?
Never stop, skip, double, or otherwise change a medicine without professional advice. A heat plan can include clinician-approved adjustments, but it must not give the reader a self-directed dose change.
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3. Set individualized fluid and electrolyte instructions
CDC’s general public advice is to drink more water than usual and not wait until thirst develops. That advice does not replace a prescribed fluid limit. People with heart failure, kidney disease, liver disease, or another condition requiring restricted fluids, and people taking water pills, should ask their clinician exactly how much and how often to drink.
Ask the clinician what to do after heavy sweating, vomiting, or diarrhea and whether the person needs a safe way to replace lost salt and minerals. Do not assume that a sports drink, salt tablet, or a fixed number of glasses is appropriate. Write the approved amount, timing, and exceptions in the plan, using the units the person normally understands.
4. Plan for refrigerated medicines and electric medical devices
Power loss can turn a heat event into a medical emergency. CDC examples that may require outage planning include insulin, nebulizers, ventilators, and oxygen concentrators. The exact storage temperature, battery duration, and backup procedure depend on the actual medicine or device.
Ask the pharmacist, clinician, device supplier, or manufacturer for written instructions covering:
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- Safe temperature range and maximum time outside refrigeration for each medicine.
- Battery, generator, or alternate-power requirements for each device.
- Who can provide transport to a location with power.
- How to obtain replacement supplies if an outage lasts longer than expected.
- Which number to call when the device fails or a supply becomes unsafe.
Keep the instructions, medication list, chargers, spare batteries, and contact numbers together. A generator or battery system must be used according to its safety instructions; never place a fuel-burning generator indoors or in an attached garage.
5. Assign check-in roles
Choose a primary check-in person and a backup. Agree on the times, communication method, and what happens if the older adult does not answer. A check-in can be an in-person visit, phone call, or another method that reliably confirms the person is safe; use an in-person visit when communication alone cannot reveal whether the home is too hot or the person is confused.
CDC’s older-adult guidance tells caregivers to visit people in their care at least twice a day. During each contact, ask whether the person has access to cooling, is following the clinician-approved fluid plan, knows where to go if the home becomes unsafe, and has symptoms of heat stress. Document missed contacts and the escalation step rather than relying on memory.
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Use the plan on hot days
Check forecasts and air quality early
Decide who checks the local CDC HeatRisk forecast and air-quality information each day. HeatRisk helps identify days when heat may threaten health; air-quality information matters when smoke or pollution makes travel and exertion harder. Set a trigger in the written plan, such as moving the person’s activity indoors or starting the backup-location procedure when the forecast reaches the locally agreed risk level.
Check again before any outdoor trip. A forecast can change, and a safe morning may become dangerous later. Share the day’s decision with the older adult, caregiver, transport provider, and backup contact.
Keep the person in dependable cooling
Use air conditioning at home or go to the planned air-conditioned location. If the home lacks air conditioning, arrange the move before indoor temperatures become unsafe. A fan is not a substitute for air conditioning in very hot conditions. Current CDC public guidance says to use indoor fans only when the indoor temperature is below 90°F; above 90°F, a fan can increase body temperature.
Close blinds or curtains that receive direct sun, avoid heating the home with a stove or oven, and use cool showers or baths if they are safe for the person’s mobility. Check the indoor temperature with a thermometer rather than judging comfort by touch alone, especially when a medicine or health condition may blunt heat perception.
Change outdoor activity and clothing
Postpone very strenuous activity and use cooler times of day for essential outdoor tasks when possible. Arrange help with errands, yard work, and walking routes. Choose loose, lightweight, light-colored clothing and consider a hat and shade for brief trips. Carry the person’s approved fluids and medication information, and make sure there is a cooled destination on the route.
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Offer fluids according to the clinician’s instructions rather than waiting for thirst or improvising a target amount. Continue prescribed medicines as directed unless the clinician has supplied a specific heat-day instruction. A caregiver should not alter a dose because the person is sweating, eating less, or feeling dizzy; contact the appropriate clinician or pharmacist.
Check for symptoms at every contact
Ask directly about muscle cramping, unusually heavy sweating, shortness of breath, dizziness, headache, weakness, nausea, vomiting, or a feeling of overheating. Older adults may not describe thirst or heat clearly, so observe changes in behavior, alertness, movement, and ability to follow the plan.
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If heat-related illness symptoms appear, move the person to a cooler place, stay with them, and seek medical care immediately as CDC advises. Use the local emergency number for a life-threatening situation or when the person cannot safely be moved or evaluated. Do not leave someone who is confused, faint, severely weak, or rapidly worsening alone while waiting for help.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Make the cooling choice deliberately
There is no single cooling arrangement that fits every household. Compare the options using the same practical questions rather than assuming that buying an appliance solves the problem.
| Decision question | What to verify |
|---|---|
| Dependable air conditioning | Can the home maintain a safe temperature during the entire heat event, including overnight, and can the person operate the system? |
| Housing fit | Can the chosen equipment be installed and vented safely, with a suitable electrical circuit and permission from the landlord or housing authority where required? |
| Public cooled location | What are the current hours, accessibility features, admission rules, and transport arrangements? |
| Distance and return trip | Who provides transport, how long does the journey take in heat, and what is the backup if the ride is canceled? |
| Power and medical devices | Will the person’s cooling method and any oxygen, nebulizer, ventilator, or other electric device work during an outage? |
| Cost and continuity | Can the household afford operation, transport, or a temporary move for the full duration of a heat event? |
CDC recommends air conditioning as a cooling approach but does not endorse a particular appliance or portable model. Where purchase, installation, cost, or power reliability is a barrier, a verified public cooling location or help through 2-1-1 may be more practical.
Power-outage procedure
- Confirm the outage and indoor conditions. Check whether the air conditioner, refrigerator, oxygen equipment, and communications are working. Note the time the outage began and the indoor temperature.
- Protect medicines and devices. Follow the product-specific storage and battery instructions. Do not guess how long a refrigerated medicine remains usable; call the pharmacist or manufacturer.
- Start the relocation trigger. If the home cannot remain cool or a medical device is at risk, contact the transport person and move to the named backup location before conditions deteriorate.
- Notify the check-in network. Tell the primary and backup contacts where the person is, which supplies went with them, and when the next check-in will occur.
- Escalate medical problems. If symptoms of heat-related illness develop, seek immediate medical care. If an essential device stops working or oxygen supply is threatened, use the emergency or clinical contact listed in the plan.
Give caregivers a one-page checklist
Keep a printed checklist beside the phone, refrigerator, or medication supplies. It should contain:
- The person’s name, address, preferred language, communication needs, and emergency contacts.
- Primary and backup cooling locations, hours, addresses, and transport contacts.
- Clinician-approved fluid instructions and the names of clinicians and pharmacies.
- Medication list, storage requirements, and outage instructions.
- Medical-device list, power requirements, spare-battery location, and supplier contact.
- Daily HeatRisk and air-quality check responsibility.
- Scheduled check-in times and the action for a missed check-in.
- Symptoms that require immediate medical care.
Review the sheet whenever a medicine, device, address, caregiver, or transportation arrangement changes. Replace old cooling-center information at the start of each hot season and before a forecast heat event.
Questions to take to the clinician
Bring the written plan and complete medication list to a clinician or pharmacist. Ask for answers that are specific to the person, not generic heat advice:
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- Which medicines or conditions increase heat risk, and what symptoms should trigger a call?
- Are there safe clinician-directed changes for unusually hot days?
- How should each refrigerated medicine be stored during an outage?
- How long can each electric device run on its battery or backup power?
- What is the preferred urgent-care, emergency, or after-hours contact?
CDC’s public heat guidance, updated July 20, 2026, states: “Work with your doctor to create a Heat Action Plan.” CDC older-adult and chronic-condition guidance was updated June 25, 2024; clinician medication-and-heat resources were updated September 18, 2025, and patient heat-planning resources September 24, 2025. These materials are U.S.-focused and do not replace individualized medical advice.
When to revise the plan
Update the plan after a hospitalization, a new diagnosis, a medication change, a move, a loss of air conditioning, a change in mobility, or a new power-dependent device. Rehearse the transport and outage steps while the weather is mild. A plan that exists only in one caregiver’s phone is fragile; give the older adult, backup contact, clinician, and relevant service providers the information each needs.
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