Northeastern US to face more days of unsettled weather beyond Memorial Day

The unsettled weather plaguing the northeastern United States will continue for much of the week.

Instead of the unofficial start to summer ushering in abundant sunshine and warmer air, rounds of showers and thunderstorms will continue to venture into the Northeast on a nearly daily basis this week.

Those with outdoor plans will remain on edge for possible delays or postponements. Anyone in need of a string of consecutive dry days to get lengthy field or renovation projects done will be waiting longer.

On Memorial Day, parades and picnics will be in greatest jeopardy in eastern New York and New England as steady rain swings through. Temperatures will be held 10 to 20 degrees below normal.

The morning hours of Monday will be the wettest time of the day in New York City. While there will still be clouds and a little drizzle, the afternoon will be the better time to head to Fleet Week. However, jackets will still be needed.

"Memorial Day may be the coolest in New York City since 2004," AccuWeather Senior Meteorologist Dave Samuhel said.

While a stray shower or thunderstorm may pass through during the morning, a large part of Memorial Day will be dry for ceremonies in Arlington, Virginia, and Washington, D.C.

At the same time, showers and a few thunderstorms will interfere with Memorial Day festivities across the Great Lakes as a large storm churns overhead.

The storm will be slow to shift eastward, triggering more showers and thunderstorms across the Northeast on Tuesday and Wednesday.

The afternoon hours are likely to be the most active time of these days with the most showers and thunderstorms occurring west of the I-95 corridor.

A few thunderstorms producing strong wind gusts and/or hail cannot be ruled out, but the greatest impact from the showers and thunderstorms into midweek will be to disrupt outdoor plans.

As soon as thunder is heard, the risk of being struck by lightning is present.

In addition to the unsettled weather, the storm will hold temperatures slightly below normal across the Great Lakes in the final days of May. Highs along the mid-Atlantic's I-95 corridor will climb back to near 80 F to end the month.

After the storminess to end May, residents will want to take full advantage of the weather shaping up for the first day of June.

“It seems like the best chance for a completely dry day this week will be Thursday,” AccuWeather Senior Meteorologist John Ferrick. Any showers should be confined to the St. Lawrence Valley.

Thursday will otherwise feature a partly to mostly sunny sky, low humidity and seasonable temperatures throughout the Northeast.

Highs to start June typically range from the lower 70s in Boston and Syracuse, New York, to near 80 F in Philadelphia and Washington, D.C.

Thursday will not be a preview of the weather heading into the first weekend of June.

A new storm is likely to resume the unsettled weather pattern Friday into next weekend. Any warmth or humidity attempting to surge back into the Northeast ahead of this storm will quickly get suppressed back to the south by the following week.

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