The weather will set off its own fireworks before the Fourth of July weekend as a powerful cold front drives through New Jersey by tomorrow morning. Heavy rain, ground to cloud lightning, and wind damage will be significant threats for the Garden State as the cold front drives to the east.
A hazy, hot, and humid air mass will be in place today with temperatures rising into the upper 80's to lower 90's throughout the state. The high levels of humidity will make temperatures fell like the mid to upper 90's before powerful thunderstorms develop throughout the region. Strong to severe thunderstorms will develop and lift northeast through New Jersey today into tonight. These thunderstorms will feature very heavy downpours, frequent lightning, wind gusts over 60 mph, hail, and even an isolated tornado. Flash flooding and visibility falling below a mile will be a significant threat. Winds will be from the southwest at 10 to 20 mph with gusts up to 30 mph at times especially around the thunderstorms.
Tonight, the cold front will slowly cross New Jersey with showers and thunderstorms lingering into the morning hours. Winds will veer from the southwest to northwest at 10 to 20 mph. Temperatures will fall into the lower to mid 70's for lows.
Tomorrow, the cold front will push off the coast and will be east of New Jersey by the late morning. Showers will linger in the morning followed by clearing skies from west to east. By the afternoon, scattered clouds to clear skies can be expected with a significant drop in humidity throughout the state. Temperatures will rise into the lower to mid 80's for highs.
High pressure will be in control tomorrow evening through Sunday with clear skies to scattered cloud cover. Winds will be from the northwest and north at 5 to 15 mph. Low temperatures will be in the lower to mid 60's. High temperatures will be in the lower to mid 80's.
As high pressure shifts off the coast by Monday, a series of disturbances will attempt to move through New Jersey Monday on through Wednesday leading to a threat for isolated showers and thunderstorms in the afternoon. Otherwise, scattered cloud cover can be expected. Low temperatures will range from the upper 60's to lower 70's. High temperatures in the mid to upper 80's along the coast and upper 80's to lower 90's in the Delaware River valley.