What’s the best temperature to set your AC during extreme heat?
Set your AC right this extreme heatwave with expert tips to stay cool, save energy, and avoid soaring electric bills in Wayne and Duplin Counties.
HUUM │sauna heaters/Pexels
As temperatures soar across Wayne and Duplin Counties this July 4th weekend, residents are searching for the best ways to keep their homes cool without breaking the bank. With the 2026 extreme heatwave gripping the South, setting your air conditioner to the right temperature can mean the difference between comfort and sky-high electric bills. Experts weigh in on the ideal thermostat settings and practical tips to stay cool during this sweltering summer stretch.
What Temperature Should You Set Your AC During Extreme Heat?

Finding the perfect balance between comfort and cost is key during a heatwave. Energy specialists such as those at National Grid recommend setting your indoor thermostat to 78 degrees Fahrenheit. Meanwhile, ADT Security Systems suggests a slightly cooler 76 degrees. Both recommendations are aimed at reducing energy consumption while keeping indoor temperatures comfortable enough to beat the heat.
However, individual preferences and budget considerations may lead some to choose cooler settings. It’s important to understand the financial impact: according to Cornell Cooperative Extension, increasing your thermostat by just one degree can reduce your cooling costs by 3 to 5 percent. For example, setting your AC at 78 degrees rather than 75 degrees could lower your electric bill by up to 15 percent during peak summer months.
Energy-Saving Strategies Beyond Thermostat Settings

Adjusting your thermostat is just one piece of the puzzle. Simple changes around the home can boost cooling efficiency and reduce energy usage:
- Close blinds and curtains: Blocking direct sunlight can keep indoor temperatures up to 20 degrees cooler, easing the load on your AC.
- Use fans in tandem with AC: Ceiling fans, box fans, or oscillating fans improve air circulation and can allow you to raise your thermostat by about four degrees without sacrificing comfort. Running ceiling fans counterclockwise during summer maximizes cooling effects.
- Turn off unnecessary lights: Lightbulbs generate heat, so switching off unused lights helps keep rooms cooler and reduces electricity consumption.
- Maintain your air conditioner: Regularly replacing or cleaning air filters ensures your AC runs efficiently, saving energy and money.
The Impact of Thermostat Settings on Your Electric Bill in Wayne and Duplin

Residents of Wayne and Duplin counties often see their electric bills spike during the hot summer months, especially during prolonged heatwaves like the one in July 2026. The difference of just a few degrees on your thermostat can translate into significant savings. For example, raising your thermostat from 75 to 78 degrees could trim your cooling costs by as much as 15 percent, a welcome relief for families managing summer budgets.
To maximize savings, consider combining a higher thermostat setting with supplemental cooling methods such as fans and shading windows. These approaches reduce the strain on your AC unit, prolong its lifespan, and help keep your home comfortable without excessive energy use.
Additional Tips to Stay Comfortable During the 2026 Heatwave

Beyond temperature settings and energy-saving techniques, here are more ways to stay cool and safe during extreme heat in our region:
- Stay hydrated by drinking plenty of water throughout the day.
- Avoid using heat-generating appliances like ovens and dryers during peak afternoon hours.
- Wear lightweight, breathable clothing indoors.
- Limit strenuous outdoor activities during the hottest parts of the day.
By combining these strategies with smart thermostat settings, residents of Mount Olive, Wayne County, and Duplin County can better handle the 2026 heatwave while keeping energy costs in check.
With temperatures expected to remain high through the July 4th weekend, making informed choices about your air conditioning settings and home cooling habits is essential. Setting your AC to around 78 degrees, using fans to circulate air, and blocking out sunlight can help you stay comfortable and save money as the summer heat presses on.


