As a cold front over southern New Jersey slowly drops south, skies will clear from north to south through this afternoon and evening as humidity in the atmosphere crashes. The excellent weather conditions will continue into this weekend but a major pattern change is on the way for next week!
As the cold front drops south today, high pressure will build in from the north leading to clouds clearing from north to south through the day. Periods of showers and isolated thunderstorms will linger over southern New Jersey through this afternoon leading to localized flash flooding from Atlantic County to Cape May County. Rainfall rates of over a half an inch per hour have been observed and will continue through this afternoon. Winds will be from the northwest at 5 to 15 mph. Temperatures will rise into the lower to mid 80's for highs.
Tonight through Sunday, high pressure will be in complete control with clear skies to scattered cloud cover. There will be no threat for any rainfall while humidity remains on the low side making for some very comfortable weather conditions. Low temperatures will range from the upper 50's to lower 60's over northwestern New Jersey to the mid to upper 60's along the New Jersey coast. High temperatures will range from the lower to mid 80's along the immediate New Jersey coast and mid to upper 80's over the Delaware River Valley. Due to the contrast of cold water along the immediate New Jersey coast and the warmer air along the coast, areas of fog will be a threat each morning.
A major change in the weather pattern will evolve for early next week. As the Polar jet stream amplifies next week, a significant threat for strong to severe thunderstorms will develop for Monday and Tuesday followed by a dramatic cool down for the middle of next week that will linger for some time.
On Monday, a powerful cold front will slowly start to inch towards New Jersey with a strong southwesterly wind ahead of the cold front. Showers and thunderstorms can be expected in the afternoon. A few of the thunderstorms will be capable of reaching severe levels. Temperatures will range from the upper 60's to lower 70's for lows and upper 80's to lower 90's for highs.
The powerful cold front will drive through New Jersey on Tuesday with widespread showers and strong to severe thunderstorms. There is potential for these thunderstorms to produce large hail, heavy downpours, frequent lightning, wind gusts over 60 mph, and even an isolated tornado. Temperatures ahead of the cold front will range from the lower to mid 70's for lows and upper 80's to lower 90's for highs.
A strong polar high pressure system will take hold on Wednesday with clearing skies and a much colder air mass taking hold. For the Summer, temperatures will not be moving all that much. Low temperatures will range from the mid to upper 60's. High temperatures will struggle in the mid to upper 70's, which will be at much as 10 degrees below normal for this time of year. Get ready for some October like weather in July!