The advisory does not include Dutchess at this time, but covers Westchester, Putnam and Rockland counties from 11 a.m. through 6 p.m. Monday.
A heat advisory is issued when the combination of heat and humidity is expected it to make it feel like it is 100 to 104 degrees for consecutive hours.
While the advisory is not in effect for Dutchess, county residents need to exercise caution if working outdoors or if they have heat-related issues, according to the National Weather Service.
Prolonged exposure to heat and humidity will result in heat exhaustion or heat stroke, the National Weather Service warns.
Anyone working outdoors should take frequent rest breaks in shaded or air-conditioned areas. Anyone overcome by heat should move to a cool and shaded area.
There is a chance of showers and thunderstorms, mainly after noon on Monday. Some of the storms could produce gusty winds and heavy rain. Otherwise, it will be partly sunny with a high of around 92 degrees and heat index values near or at 100 degrees.
There will be patchy fog after 9 p.m. Monday with the storm chance continuing through midnight
Tuesday will be mostly sunny with a high near 90.
Click here to follow Daily Voice Southwest Dutchess and receive free news updates.