A costal low will be moving up the Northeast coast bringing heavy rainfall to New England, while a low pressure system back towards the West will keep things wet Thursday throughout the weekend for the entire Northeast. Along the coast, there will be high winds and big waves to go along with the rainfall.

This low-pressure system in the Eastern U.S. is also set to deliver an extended stretch of cool and rainy weather from the Ohio Valley through the Mid-Atlantic regions. As this system lingers, residents across these areas can expect periods of steady rain, with some isolated thunderstorms developing particularly in southern New England. While the risk of excessive rainfall remains marginal, localized downpours could still lead to minor flooding concerns in susceptible areas. 

SETUP

Beyond the rainfall, a stagnant upper-level low positioned over the Great Lakes and Northeast is ushering in an unseasonably cool air mass. Over the coming days, much of the Northern Plains, Midwest, Northeast, and Mid-Atlantic will experience high temperatures ranging from the 50s to low 60s. These temperatures represent a stark departure from seasonal norms, with temperatures running 20 to 35 degrees below average. 

The dramatic cooldown may lead to widespread record-breaking low maximum temperatures, Thursday into Friday. From the Ohio Valley to the Atlantic Coast, cities and towns should brace for chilly days more typical of early spring or even late winter, rather than late May. 

WINDS

Wind gusts of 40–50 mph are expected across eastern Massachusetts through Thursday. Secure loose objects and be prepared for possible tree damage.

RAIN

A couple of inches are likely across much of the region, with the heaviest totals (up to 4 inches) expected from Pennsylvania through southern New England.

POWER OUTAGES

Saturated soils plus strong winds? That’s a recipe for scattered power outages. If you plan to use a generator, remember to run it at least 20 feet away from your home for safety.