"There will be almost no relief at night with overnight low temperatures in the upper 70s and 80s".
Two-thirds of the United States is set to experience a "dangerous and widespread" heat wave this weekend, as temperatures are expected to rise above 100 degrees in many parts of the midwest and the East Coast, affecting millions of people.
An excessive heat watch has been issued for most of MA from 11 a.m.to 9 p.m. Saturday. Know your local weather, temperature and heat index forecasts.
According to the website of the National Weather Service in Wilmington: "The combination of temperature and humidity will lift the heat index above 100 in many locations with 110 or higher possible in the warmest locations".
An Excessive Heat Watch has been issued for southern IL, western Kentucky, and southeast Missouri as temperatures in the 90s and heat index values between 100 and 110 degrees through the weekend. If spending ample time outdoors make sure to drink lots of water to stay hydrated and wear loose fitting clothing! Extra caution will be needed in this heat.More news: Oriented Snapdragon 855 Plus Wont Happen for Samsung Galaxy Note 10
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"To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments".
50 North in Findlay will be open as a cooling station 8 a.m.to 8 p.m. today, Friday and Saturday; and 8 a.m.to 9 p.m. Thursday. When possible, reschedule strenuous activities to early morning or evening.
"The combination of hot temperatures and high humidity will combine to create a risky situation in which heat illnesses are possible", the weather service said.
"Plan to spend more time in air conditioned or well-ventilated places", the NWS advises.
From life-threatening heat strokes to unsightly heat hives, Fox News' Dr. Manny Alvarez sits down with an internal medicine specialist to breakdown the top ways extreme heat can affect the body.