Heat Advisory Issued for Houston and Southeast Texas This Weekend
Houston and all of southeast Texas are under a Heat Advisory from noon to 7pm on Saturday and Sunday. Expect high temperatures in the upper 90s to low 100s, with heat index values reaching 106 to 110 degrees.
Houston, TX, August 22, 2026 —
Houston and the broader southeast Texas region are bracing for significant heat over the weekend, prompting the issuance of a Heat Advisory. The advisory is in effect from noon to 7 p.m. on both Saturday and Sunday.
During this period, residents can anticipate high temperatures to climb into the upper 90s, potentially reaching the low 100s. More concerning are the forecasted heat index values, which are expected to range between 106 and 110 degrees Fahrenheit. The heat index, often referred to as “feels like” temperature, combines air temperature and relative humidity to indicate the degree of stress on the human body.
Authorities are advising the public to take precautions to avoid heat-related illnesses. These may include limiting strenuous outdoor activities, staying hydrated by drinking plenty of fluids, and seeking air-conditioned environments when possible. It is also recommended to wear lightweight and light-colored clothing.
The prolonged period of high temperatures and humidity poses a risk to all individuals, but particularly to vulnerable populations such as the elderly, young children, and those with chronic health conditions. Individuals working outdoors are at an elevated risk and should take extra care to manage their exposure to the heat.
The National Weather Service issues Heat Advisories when conditions are favorable for heat indices to reach dangerous levels, typically between 100 and 104 degrees for at least two consecutive hours, or 105 to 110 degrees for at least one hour. The current forecast indicates that the heat index will meet these criteria, necessitating public awareness and preventive measures.
Further updates on weather conditions will be provided as they become available.
Story summarized from the original created by Allison.Gargaro@fox.com (Allison Gargaro) on www.fox26houston.com, see more information here.
