EAST - Heat Advisories and Extreme Heat Warnings continue across the eastern U.S. But, cooler temps are coming by the end of the week for most of the Northeast with a 20 degree temperature drop (or more). Boston, MA set an all-time June record high of 102 degrees on Tuesday. Philadelphia, PA hit 100 degrees for the first time in 13 years.

Why? A massive, high-pressure heat dome is in control of the East. Temps are baking beneath this high.

Records

And, you can't forget about the heat index.

On Tuesday (6/24) Boston, MA set an all-time June record high:

What lies ahead?

Forecast highs will gradually come back down to near normal or drop to below normal for most cities in the Northeast However, locations across the Southeast could see highs a few degrees above average if a thunderstorm doesn't cool things down!

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