To help residents beat the heat, both counties have opened cooling stations, and some state and county beaches and pools will be open later Tuesday.
Cooling stations are open from 9 a.m. to 9 p.m. for the next two days. Residents without air-conditioning can go to the stations to cool off if they are in need of some relief.
At state park beaches, such as Robert Moses, Jones Beach, Heckscher and Sunken Meadow, lifeguard hours have been extended an hour until 8 p.m. through the week and until 7 p.m. at the West Bathhouse pool, officials said.
Nassau's four major swimming pools will also be open longer than usual. The pools at Cantiague and Christopher Morley parks will be open until 7 p.m. Wantagh Park's will be open until 7:45 p.m. and North Woodmere's pool will be open until 8 p.m.
"Nassau County's outdoor pools provide residents with a terrific place to exercise, have fun and beat the heat, and with the temperatures climbing to particularly oppressive levels, we're going to provide an extra hour of relief," Nassau County Executive Edward Mangano said.
Nassau pools are only open to county residents, and there is a fee. Visit nassaucountyny.gov/parks or call 516-572-0200 for further information.
Here's some information on what other localities are doing to help residents to keep cool:
Village of Hempstead's pools are free to residents Tuesday. A cooling station has been set up at Kennedy Park with water and air-conditioning for residents.
* Town of Hempstead: Cooling centers open as follows: Baldwin Senior Center in Baldwin; Bellmore Senior Center in Bellmore; Elmont Senior Center in Elmont; Franklin Square Senior Center in Franklin Square; Green Acres Senior Center in Valley Stream; Levittown Senior Center in Levittown; Merrick Senior Center in Merrick; Oceanside Senior Center in Oceanside; Rosa Parks Senior Center in Roosevelt; Salisbury Senior Center in Westbury; Uniondale-Hempstead Senior Center in Uniondale; Uniondale-Merrick Senior Center in Uniondale; Wantagh Senior Center in Wantagh. All pools will be extended one hour to 8 p.m., except the Town Park at Sands Pool and Roosevelt Pool, which will close at 7 p.m.
North Hempstead: Pools are open until 9 p.m. and perhaps later if the need arises, town officials said. They offer these cooling stations for residents: Clinton G. Martin Park in New Hyde Park, Great Neck Senior Center in Great Neck, North Hempstead Community Center in Port Washington, Town Hall in Manhasset, all town libraries, Great Neck House in Great Neck, Herricks Senior Center in New Hyde Park, Port Washington Senior Community Service Center in Port Washington, and Westbury Senior Center in Westbury.