Residents across Gettysburg are facing some of the most dangerous heat conditions of the summer as an Extreme Heat Warning remains in effect through 8 p.m. Thursday, followed by a Heat Advisory through 10 p.m. Saturday.

According to the National Weather Service Houston/Galveston, heat index values—the temperature the body actually feels when humidity is factored in—are expected to range from 108 to 114 degrees Thursday and Friday, with dangerous conditions continuing through the weekend as heat indices remain between 106 and 112 degrees.

While Southeast Texans are no strangers to summer heat, meteorologists warn that prolonged exposure to these conditions can quickly lead to heat-related illnesses, soaring electricity bills, and homes struggling to stay comfortable during the hottest parts of the day.

For families in Gettysburg, now is a good time to take a few simple steps that can make a meaningful difference in both safety and comfort.

Why This Heat Event Is Different

The biggest concern isn't necessarily the air temperature—it's the combination of heat and humidity.

When humidity levels rise, the body's natural cooling system becomes less effective because sweat cannot evaporate as quickly. That makes it harder for people to cool themselves and increases the risk of heat exhaustion and heat stroke.

The National Weather Service is urging residents throughout Gettysburg and Southeast Texas to stay hydrated, limit strenuous outdoor activities during afternoon hours, wear lightweight clothing, and spend time in air-conditioned environments whenever possible.

Experts also caution that fans alone may not be sufficient when heat index values exceed 100 degrees.

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7 Ways to Keep Your Home Cooler During the Heat Advisory

While air conditioners will be working overtime across the region, homeowners can take several practical steps to help keep indoor temperatures lower and reduce strain on cooling systems.

1. Close Curtains and Blinds Before the Afternoon Sun Arrives

Many homeowners don't realize how much heat enters through windows.

Keeping blinds, shades, or blackout curtains closed during the hottest part of the day—particularly on west-facing windows—can significantly reduce solar heat gain and help maintain cooler indoor temperatures.

2. Check Door and Window Seals

Small gaps around doors and windows may seem insignificant, but they allow cooled air to escape while letting hot, humid air enter.

Inspect weatherstripping and caulking around exterior openings. Replacing worn seals is one of the most affordable home efficiency improvements available.

3. Replace Your Air Filter

A clogged HVAC filter restricts airflow and forces an air conditioning system to work harder than necessary.

Many HVAC professionals recommend checking filters monthly during the summer and replacing them when they become dirty.

4. Avoid Using the Oven During Peak Heat

Cooking with an oven can add significant heat to a home, especially in common areas like the kitchen and nearby living room.

Instead, consider grilling outdoors in a shaded area during cooler morning or evening hours, using a slow cooker, or preparing meals that require minimal cooking.

5. Let Your Attic Do Its Job

Attics often reach temperatures well above 130 degrees during Texas summers.

Proper insulation and ventilation help reduce the amount of heat transferred into living spaces below. Homeowners who haven't evaluated their attic insulation in several years may benefit from a professional inspection.

6. Use Ceiling Fans Correctly

Ceiling fans cool people—not rooms.

Running fans while occupying a room can make occupants feel several degrees cooler, but leaving them on in empty rooms wastes electricity.

7. Delay Household Chores Until Evening

Dishwashers, clothes dryers, and washing machines all generate heat.

Running these appliances during the evening can reduce indoor temperatures and help lessen demand on your air conditioning system during peak heat hours.

What If Your Air Conditioner Can't Keep Up?

During periods of extreme heat, many air conditioning systems across Southeast Texas struggle to maintain the temperatures homeowners are accustomed to.

According to HVAC professionals, it's normal for some systems to run longer than usual when outdoor temperatures and heat index values climb into the triple digits. In some cases, an air conditioner may only be able to keep indoor temperatures about 20 degrees cooler than the outside air.

That means if temperatures outside are approaching 100 degrees, some homes may not consistently maintain indoor temperatures in the low 70s during the hottest part of the afternoon.

Homeowners should consider contacting a qualified HVAC technician if they notice:

• Warm air blowing from vents
• Weak airflow throughout the home
• Frequent system cycling on and off
• Ice forming on refrigerant lines
• Unusual noises or odors
• Indoor temperatures continuing to rise despite the system running continuously

Before scheduling a service call, homeowners can also check a few simple items:

• Replace a dirty air filter
• Confirm all supply vents are open and unobstructed
• Check that the thermostat is functioning properly
• Clear leaves, grass, or debris from around the outdoor condenser unit

Homeowners should also be aware that air conditioners can occasionally develop frozen evaporator coils, even during extreme heat. A dirty air filter, blocked vents, or low refrigerant levels can cause ice to form on the coil, leading to weak airflow or warm air from vents. If your AC suddenly stops cooling effectively, a frozen coil could be the culprit and may require professional attention.

Even a well-functioning system may struggle during an Extreme Heat Warning, but basic maintenance and prompt attention to potential issues can help prevent a minor problem from becoming a major repair.

Watch for Signs of Heat-Related Illness

Extreme heat can become dangerous very quickly, especially for children, older adults, outdoor workers, and individuals with chronic health conditions.

Signs of heat exhaustion may include:

• Heavy sweating
• Dizziness
• Muscle cramps
• Headaches
• Weakness
• Nausea

Heat stroke is a medical emergency and may involve:

• Body temperature above 103 degrees
• Confusion or disorientation
• Loss of consciousness
• Hot, red skin
• Rapid pulse

Anyone experiencing symptoms of heat stroke should receive immediate medical attention.

Rain Chances Return This Weekend

Forecasters are also monitoring a weather disturbance expected to bring isolated to scattered showers and thunderstorms into Southeast Texas late Friday night and Saturday morning.

The National Weather Service has identified a Slight Risk (Level 2 of 4) for heavy rainfall for areas along and north of Interstate 10 during that period.

While some locations may see temporary relief from the heat, dangerous temperatures and elevated heat index values are expected to remain a concern through the weekend.

Don't Forget About Pets and Neighbors

Extreme heat affects entire communities.

Residents in Gettysburg are encouraged to ensure pets have access to fresh water and shade, never leave children or animals in parked vehicles, and check on elderly neighbors or those who may not have reliable access to air conditioning.

A quick phone call, text message, or visit could make a meaningful difference during periods of prolonged heat.

As Southeast Texas endures another stretch of triple-digit heat index values, taking a few simple precautions now can help families stay safer, more comfortable, and better prepared until cooler conditions return.

Stay tuned with My Neighborhood News for additional weather updates and community information affecting Gettysburg throughout the summer.

By Tiffany Krenek, My Neighborhood News 

Tiffany Krenek has been on the My Neighborhood News team since August 2021. She is passionate about curating and sharing content that enriches the lives of our readers in a personal, meaningful way. A loving mother and wife, Tiffany and her family live in the West Houston/Cypress region.