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Fox News Weather Center

Rounds of rain to frequent northeastern US this week

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Bouts of wet weather will frequent the northeastern United States during the last full week of September.

While the entire week will not be a washout, residents will have to contend with a number of wet periods interspersed with dry periods into the first weekend of October.

The first round of rain will soak the region on Monday afternoon into Tuesday.

The wet weather will progress across the interior Northeast on Monday afternoon into Monday night, before reaching the New England and mid-Atlantic coasts on Tuesday morning.

A few heavy and gusty thunderstorms may be embedded in the rain, with the greatest threat of that occurring in far eastern Ohio, western Pennsylvania and West Virginia on Monday afternoon.

A majority of the rain during this time period is expected to last one or two hours at most. However, the rain may linger along coastal Maine, Cape Cod, eastern Long Island and the Delmarva for much of Tuesday.

After a brief dry break around the middle of the week, unsettled weather will return to the region during the latter half of the week.

A system which will generate gusty winds across the Great Lakes through Tuesday will dive southward and stall.

"This system will get cut off from the jet stream, which will allow it to remain stuck over the Ohio Valley or Northeast for several days," said AccuWeather Meteorologist Brian Thompson.

The jet stream is a river of high winds in the upper atmosphere that guides systems across the country. A system that breaks free from the jet stream can stall and bring unsettled weather to an area for consecutive days.

"Where this system sets up, there will be several days of rather cloudy, rainy and dreary weather," Thompson explained.

The rain may first begin across the Ohio Valley and mid-Atlantic later on Wednesday into Thursday, before expanding into New England towards the end of the workweek.

Even where the rain holds off, plenty of clouds and a chilly breeze off the Atlantic could make for a dreary end to the week for most across the Northeast.

The clouds and rain will keep this week's temperatures right around normal for this time of year.

Highs will predominately remain in the 60s and lower 70s across the region.

While the cool and dreary conditions may dampen efforts to enjoy local fall festivals and early season leaf-peeping, any rain that falls will be beneficial across the region.

According to the latest U.S. Drought Monitor released on Sept. 22, nearly 40 million Northeast residents are being affected by drought conditions. The most extreme drought conditions have focused on southern New England and western and central New York over the past few months.