Today | Weather | Thursday, July 2, 2026
Active Weather Warnings

Weather in Middletown, Delaware

10:08 PM
Now
Cloudy Night
86° F
Feels Like 91°
Precipitation 0 %
Wind 7 mph
Humidity 65 %
Today
Hot Day
Day 100°
Night 77°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Middletown Weather Forecast Updated

Air Quality in Middletown

NOW
55 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 14.14 µg/m³
PM10 20.68 µg/m³
O3 0.050 ppm
NO2 1.8 ppb
SO2 0.6 ppb
CO 0.13 ppm
NH3 1 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.514.14 µg/m³
PM1020.68 µg/m³
O398.9 µg/m³
NO23.38 µg/m³
SO21.57 µg/m³
CO148.25 µg/m³
NH31 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Middletown

Severe Future Likely

Extreme Heat Watch

Extreme Heat Watch issued June 29 at 5:17PM EDT until July 4 at 8:00PM EDT by NWS Mount Holly NJ
Jul 1, 12:00 PM Jul 4, 8:00 PM
WHAT: Dangerously hot conditions with heat index values up to 110
degrees possible.

WHERE: Portions of northern Delaware, central and southern New
Jersey, and southeast Pennsylvania.

WHEN: From Wednesday afternoon through Saturday evening.

IMPACTS: Heat related illnesses increase significantly during
extreme heat and high humidity events.

ADDITIONAL DETAILS: Very warm low temperatures in the mid 70s to
low 80s at night will not offer any relief from the heat. This
combined with multiple days of near record breaking temperatures
will exacerbate the impacts from the heat and humidity.
+ Read More
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. If you do not have air conditioning in your home or lack shelter, you can call 211 or visit your county or state health department website for assistance locating appropriate shelter from the heat.
Updated: Jun 30, 1:10 AM Source: NWS Alert
Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued July 2 at 1:30PM EDT until July 4 at 8:00PM EDT by NWS Mount Holly NJ
Jul 2, 1:30 PM Jul 4, 8:00 PM
WHAT: Dangerously hot conditions with heat index values between
105 and 115 degrees expected each day.

WHERE: Portions of northern Delaware, central and southern New
Jersey, and southeast Pennsylvania.

WHEN: Until 8 PM EDT Saturday.

IMPACTS: Heat related illnesses increase significantly during
extreme heat and high humidity events.

ADDITIONAL DETAILS: Very warm low temperatures in the mid 70s to
low 80s at night will not offer any relief from the heat. This
combined with multiple days of near record breaking temperatures
will exacerbate the impacts from the heat and humidity. The
hottest conditions are expected to occur today through Friday.
+ Read More
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. 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! Call 9 1 1. If you do not have air conditioning in your home or lack shelter, you can call 211 or visit your county or state health department website for assistance locating appropriate shelter from the heat.
Updated: Jul 2, 6:52 PM Source: NWS Alert