NWS Forecast Office New York, NY
OKX
NWS Forecast Office New York, NY
OKX
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Extreme Heat Warning
Extreme Heat Warning
URGENT - WEATHER MESSAGE
National Weather Service New York NY
547 AM EDT Tue Jun 30 2026
CTZ005>007-009-010-NJZ002-004-006-103>108-NYZ067>071-302200-
/O.CON.KOKX.XH.W.0001.260701T1600Z-260702T0100Z/
/O.CON.KOKX.XH.A.0001.260702T0100Z-260705T0100Z/
Northern Fairfield-Northern New Haven-Northern Middlesex-Southern
Fairfield-Southern New Haven-Western Passaic-Eastern Passaic-
Hudson-Western Bergen-Eastern Bergen-Western Essex-Eastern Essex-
Western Union-Eastern Union-Orange-Putnam-Rockland-Northern
Westchester-Southern Westchester-
547 AM EDT Tue Jun 30 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON TO 9 PM EDT
WEDNESDAY...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH SATURDAY EVENING...
* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values between 105 to 110 expected. For the
Extreme Heat Watch, dangerously hot conditions with heat index
values up to 112 possible.
* WHERE...Portions of southern Connecticut, northeast New Jersey,
and southeast New York.
* WHEN...For the Extreme Heat Warning, from noon to 9 PM EDT
Wednesday. For the Extreme Heat Watch, from Wednesday evening
through Saturday evening.
* IMPACTS...Extreme heat and humidity will significantly increase
the potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* ADDITIONAL DETAILS...This has potential to be a multi-day extreme
heat event with near record high temperatures and little overnight
relief. This level of heat can be deadly for those without
adequate cooling and hydration. Impacts to transportation
infrastructure and electrical and water systems are also possible.
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.
An Extreme Heat Watch means that the combination of heat and
humidity could create a dangerous situation in which heat illnesses
are possible. 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.