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Fall preview to end the week

A cool, dry Canadian air mass will produce excellent weather for the end of the week
A cool, dry Canadian air mass will produce excellent weather for the end of the weekNWS/NOAA

I think the best way to describe today's weather is refreshing. With temperatures 4 to 8 degrees below normal for highs this afternoon and very low humidity, a preview of Fall like weather will be in place throughout New Jersey. The first half of this weekend also looks to be rather pleasant, however starting Sunday, New Jersey will enter a weather pattern that is unsettled and humid.

This afternoon, high pressure will produce clear skies to scattered cloud cover. An isolated shower is possible over northern New Jersey but not expected. Winds will be from the west and northwest at around 5 mph. Temperatures will only rise into the lower to mid 70's over northwestern New Jersey and mid 70's throughout the rest of New Jersey, which is well below normal for this time of year.

High pressure will drift towards New England tonight with clear skies in place along with light and variable winds. Temperatures will crash to well below normal levels with mid to upper 40's in some locations in northwestern New Jersey, upper 40's to lower 50's over the rest of northern New Jersey, and lower to mid 50's over central and southern New Jersey. Typically low temperatures are in the lower to mid 60's in mid August.

High pressure will set up to the east of New England tomorrow with winds backing to the southwest at 5 to 10 mph. With tranquil conditions in place and a southwesterly flow, temperatures will rebound to near normal levels with lower to mid 80's throughout New Jersey.

A cold front will approach New Jersey on Sunday with increasing clouds expected and scattered showers and thunderstorms in the afternoon and evening. The thunderstorms are not expected to be severe, but will be capable of heavy downpours and wind gusts over 40 mph. Temperatures will range from the lower to mid 60's for lows and lower to mid 80's for highs.

Weak high pressure will be in place on Monday with scattered to broken cloud cover. The high pressure system will lock in over the Gulf of Maine and will help set up an unsettled period of weather through the rest of the week. Temperatures on Monday will range from the lower to mid 60's for lows and lower to mid 80's for highs.

A series of low pressure systems will track from the mid Mississippi River Valley to the New Jersey coastal waters Tuesday on through Friday with periods of rainfall expected. The rain will be heavy at times leading to the threat for flash flooding. With winds from the northeast at 5 to 15 mph, increasing to 10 to 20 mph at times, a cool marine air mass from the Northwestern Atlantic will be in place. Temperatures will range from the lower to mid 60's for lows and upper 70's to lower 80's for highs through the period.