Extreme Heat Warning

Locations Affected

New York, NY ∙ Jersey City, NJ ∙ Newark, NJ ∙ Bridgeport, CT ∙ New Haven, CT ∙ Paterson, NJ ∙ Yonkers, NY ∙ Stamford, CT ∙ Elizabeth, NJ ∙ Waterbury, CT

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service New York NY 1122 AM EDT Sat Jun 21 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON SUNDAY TO 8 PM EDT TUESDAY... * WHAT...Dangerously hot conditions with heat index values up to 110 expected. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From noon Sunday to 8 PM EDT Tuesday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Extreme Heat Warning means that the combination of heat and humidity is expected to make it feel like it is 105 degrees or greater. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible, and drink plenty of water. Seniors and those with chronic health problems or mental health conditions are at an increased risk. Homes without air conditioning can be much hotter than outdoor temperatures. Use air conditioning to stay cool at home or go to a place that has air conditioning. If you don't have home air conditioning, continue to seek out cool spaces each day as long as it remains hot, and for a few days after if your home is still hot. Check on vulnerable friends, family members and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! In cases of heat stroke call 9 1 1.

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