CLOSE

Potential Tropical Cyclone Six could develop into Fred, the season’s sixth named storm, by the weekend. Low wind shear could aid its development. Accuweather

LINKEDINCOMMENTMORE

If you were hoping for the return of hot summer weather, your wish has likely been granted.

A second consecutive day of extremely hot and muggy temperatures continues into Wednesday with heat index values expected to reach as high as 107 degrees, according to the National Weather Service forecast.

Am excessive heat warning remains in effect through Thursday evening for nearly the entire state, excluding Atlantic, Cape May, Cumberland, Salem and Sussex counties. 

During this time, forecasters warn of dangerous hot conditions, with heat index values up to 107 degrees and potentially up to 108 degrees on Thursday. The weather service said extreme heat and humidity will significantly increase the potential for heat-related illnesses, particularly for those working of participating in outdoor activities.

Tropical Storm Fred: Fred forms in Atlantic; Florida keeping a watchful eye on system's path later this week

Temperatures will climb into the mid to high 90s with humidity making it feel over 105 degrees at times during the afternoon hours for parts of central New Jersey, including Flemington in Hunterdon, New Brunswick in Middlesex, Trenton in Mercer, Toms River in Ocean, and many other areas across the state.

Caution: 5 Jersey Shore beaches under bacteria advisories

And like many heat waves, there is always the potential for severe thunderstorms heading toward us. Due to the tropical air mass hovering over the state, severe storms are possible in the afternoon hours that will be capable of torrential downpours, frequent vivid lightning, hail and wind gusts up to 75 mph, according to private meteorologist Steven DiMartino, who runs NY NJ PA Weather.

Severe thunderstorm and flash flood warnings are expected to be issued for areas impacted under the severe weather, the weather service said.

The story continues below the graph.

The heat is expected to pick up Thursday morning and fall slightly lower by Friday, as well as more thunderstorms during the afternoon hours, according to DiMartino. Thursday could be the hottest day in quite some time, with heat index values expected to reach above 105 degrees and as high as 110 degrees in some areas.

By Saturday, a cold front is expected to slowly develop across the state, according to the weather service. Temperatures will drop back into the mid to high 80s with less humidity, but still bring the potential for widespread showers and thunderstorms.

It's back: Passaic County Fair returns this week to Garret Mountain Reservation

Forecasters continue to also keep track of Tropical Storm Fred, which was located 115 miles east of Santo Domino, Dominican Republic as of 5 a.m. Wednesday - packing heavy winds at 40 mph. 

The National Hurricane Center said the storm is not expected to strengthen into a hurricane by the time it shifts toward the Gulf Coast around Florida by this weekend.

Joshua Chung is the 9-5 breaking news and weather reporter. A lifelong Jersey Shore resident, he is a recent graduate of Michigan State University. Contact him at jchung@gannettnj.com, 917-703-9373 or on Twitter @Joshchunggg

LINKEDINCOMMENTMORE
Read or Share this story: https://www.app.com/story/weather/2021/08/11/nj-weather-forecast-excessive-heat-temperature-storm/5566048001/