The shift will affect much of the Northeast and mid-Atlantic, including New York, New Jersey, Connecticut, Massachusetts, Pennsylvania, Maryland, and Virginia, according to the National Weather Service.
Monday, May 18, will be sunny with high temperatures in the mid- to upper 80s. Some spots will hit 90 degrees.
The heat will hold on Tuesday, May 19, with another round of summer-like conditions that will make it feel warmer because of rising humidity.
Then comes the change.
The National Weather Service says the midweek storm system will bring showers and possibly a thunderstorm from Wednesday, May 20, into Wednesday evening. That system will mark the transition out of the hot stretch.
The Weather Prediction Center says relief from the early-season heat is expected to arrive Thursday, May 21, as a cold front reaches the Mid-Atlantic and East Coast states.
Thursday will bring a chance of morning showers before skies gradually become partly sunny. High temperatures will be around 20 degrees lower than the previous three days in many areas.
The warmup began as high pressure developed over the Southeast and shifted offshore, allowing warm, humid air to expand into the East.
AccuWeather said the pattern would make it feel more like summer than spring, especially by Tuesday, when many areas could see their highest temperatures of the year so far.
New York City, Philadelphia, Baltimore, and Washington, DC, all reached 90 degrees or higher during a warm spell in mid-April. Much of the region has stayed below that mark so far in May.
Parts of New England, including Boston, are still waiting for their first 80-degree day of the year.
The midweek system may bring the most noticeable break from the heat, but it could also make for a damp Wednesday afternoon and evening commute.
Check back with Daily Voice for the latest updates.
Click here to follow Daily Voice and receive free news updates.
