If you had planned to take your vacation this week and head to the New Jersey coast, this likely is not the best week for beach conditions. On the other hand, likely many weeks this Summer will feature rather poor beach conditions. However, the good news is the weekend is setting up to be excellent once again!
Today, a weak frontal boundary with waves of low pressure will meander over the Garden State leading to overcast skies to broken cloud cover and a threat for widely scattered showers and thunderstorms. These thunderstorms will be capable of very heavy downpours, wind gusts over 30 mph, occasional lightning, and visibility below a mile at times. Many locations today will just remain cloudy and dry though as this boundary and the associated low pressure systems are rather weak. Winds will back from the south to southeast at 5 to 10 mph. Temperatures will rise into the mid to upper 70's along the coast and upper 70's to lower 80's towards the Delaware River.
Tonight, the frontal boundary will shift to align with the Delaware River leading to winds backing to the east at 5 to 15 mph, increasing to 10 to 20 mph along the coast by morning. Temperatures will fall into the mid to upper 60's for lows. Fog will be a threat in the early morning hours due to the high levels of moisture in the atmosphere.
Tomorrow, under the influence of an easterly wind, temperatures will struggle to rise into the lower to mid 70's along the immediate coast, mid to upper 70's over much of the rest of New Jersey, and upper 70's to lower 80's right along the Delaware River. The easterly wind will lead to rough surf at the beach and lead to the threat for strong rip tides. Periods of showers and thunderstorms can be expected with very heavy rainfall totals expected with a half an inch to an inch along the coast and an inch to two inches along the Delaware River.
A cold front will slowly move through New Jersey on Thursday and Friday with scattered showers and thunderstorms expected. The thunderstorms will remain below severe levels but will be capable of very heavy downpours, wind gusts over 30 mph, and occasional lightning. Flash and urban flooding will be a threat. Temperatures on Thursday will range from the mid 60's for lows and upper 70's to lower 80's for highs. Temperatures on Friday will range from the mid to upper 60's for lows and lower to mid 80's for highs.
High pressure will build in on Saturday and remain in place for Sunday and Monday. Skies will clear on Saturday followed by clear skies for Sunday and Monday with comfortable weather conditions. Perfect beach weather will be in place with lows in the mid 60's and highs in the lower to mid 80's.