Ahead of the arrival of the systems, Thursday, June 20, the first day of summer, will be another scorcher, with temperatures topping out in the low 90s and the heat index (the combination of temperature and humidity) as high as 100 degrees. (See the image above from AccuWeather.com.)
The summer solstice arrives at 4:50 p.m. Eastern time Thursday, according to NASA.
"The duration and intensity of this heat wave in the Northeast is uncommon in the month of June," according to AccuWeather, which notes this has been the most intense June heat wave that some areas have experienced in decades.
It will be mostly sunny Friday morning, June 21 before clouds increase in the afternoon, according to the National Weather Service. The high temperature will be in the low 90s.
The first round of showers and thunderstorms is on track for Friday, starting late in the afternoon and continuing into the evening. (See the second image above.)
The storm system is expected to be accompanied by downpours, wind gusts as high as 50 to 60 miles per hour, and possible hail.
Saturday, June 22 will be mostly cloudy and not as hot with the high temperature in the mid-80s.
A new round of scattered showers and storms will move through from the mid-afternoon into the early evening.
Sunday, June 23 will be mainly cloudy and warm, with a high temperature around 90.
The next round of showers and storms is expected from late Sunday afternoon into the evening.
The rounds of storms will be followed by a cold front moving in from the Midwest that will arrive in the Northeast on Monday, June 24, with yet another round of showers and storms possible.
Monday's high temperature will be in the mid-80s with partly sunny skies.
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