Wednesday, Aug, 26 will remain dry for most of the region, with temperatures around 80 degrees and light winds, according to the National Weather Service.
The change becomes more noticeable Thursday, Aug. 27, as warmer, more humid air returns and a frontal boundary approaches.
The National Weather Service Storm Prediction Center outlook calls for clouds and scattered showers in parts of the Northeast and Mid-Atlantic, though a widespread severe-weather event is not currently indicated.
AccuWeather is highlighting a more active period Thursday afternoon and evening across parts of Pennsylvania and New York, south through the Mid-Atlantic, with showers, thunderstorms, locally severe storms, and a flash-flood risk in some areas.
The shift follows an unusually cool start to the week.
AccuWeather says Canadian air will keep temperatures 5 to 10 degrees below historical averages in parts of the interior Northeast through Tuesday. The pattern begins to loosen Wednesday before warmer, more humid air spreads eastward Thursday.
“Nighttime temperatures are expected to fall into the 50s and 60s,” AccuWeather Senior Meteorologist Brett Anderson said. “Across the interior Northeast, especially from the Adirondacks south into northern Pennsylvania, lows will likely bottom out in the 40s during the period.”
Conditions should turn cooler and drier behind the front Friday, Aug. 28, with highs mostly in the mid-70s to low 80s.
Saturday, Aug. 29, is expected to bring mostly clear, pleasant conditions across much of the Northeast and Mid-Atlantic.
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