Temperatures in the mid-to-upper 90s, feeling close to 100 degrees with humidity, are forecast for Rye, Harrison, and Rye Brook on Tuesday, July 15, and Wednesday, July 16, marking the second dangerous heat wave to hit the area in less than two weeks.

The National Weather Service issued the warning, citing extremely hot and humid conditions through Wednesday. The Rye Free Reading Room at 1061 Boston Post Road is open as a cooling center during the heat wave, according to the Rye Record.

The stretch follows the Fourth of July heat wave, when outdoor temperatures stayed in the high 90s and 100s for nearly four days before finally breaking on Saturday, July 5.

Westchester County Health Commissioner Dr. Sherlita Amler warned that infants, people with asthma, pregnant women, older adults, and those with respiratory or heart conditions should limit time outdoors until temperatures drop. High humidity and certain medications can also increase heat stroke risk, Amler said.

She urged residents to drink plenty of water, take frequent breaks from outdoor work, seek shade and air-conditioned spaces, and make sure children, the elderly, and pets stay hydrated.

"To avoid tragedy, never leave people or pets in a closed car because vehicles can heat up to life-threatening temperatures in moments," Amler said in a county press release.

Heat stroke is life-threatening. Symptoms include hot, dry skin; shallow breathing; a rapid, weak pulse; and confusion. Call 911 immediately if someone shows these signs.

The county health department recommends drinking at least two to four glasses of water per hour during extreme heat, even if you don't feel thirsty.

The Rye Free Reading Room is located at 1061 Boston Post Road. Residents can call 914-967-0481 to confirm hours during the heat wave. Standard weekday hours are 9:30 a.m. to 8 p.m., Monday through Thursday.

Harrison and Rye Brook residents looking for additional cooling centers can find locations through the New York State Department of Health at health.ny.gov/environmental/weather/cooling.

The county forecast calls for humidity to ease Thursday and Friday before returning over the weekend.