By Terry Eliasen, Meteorologist, WBZ-TV Exec. Weather Producer

BOSTON (CBS) – They say that Memorial Day is the unofficial start of summer, but we don’t always have the weather to go along with the saying.

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This year, it appears summer will be making an early appearance. We are in for a 3-to-4 day heat wave, something more typical of July or August is coming in late May and early June.

Temperatures are forecast to reach a high between 90-95 degrees Thursday, Friday, Saturday and perhaps Sunday as well.

WBZ-TV’s Christina Hager reports

The last heat wave in Boston was way back on July 13-15th of 2012, the second and final heat wave of the year.

In order to have an official heat wave you need three consecutive days with temperatures reaching 90 or higher.

Speaking of 90 degrees, it has been quite some time since we hit that mark in Boston.  August 31st of last year we hit 90 degrees on the nose, and that would prove to be the last time in 2012.

So we are talking just about 9 months between 90 degree days.

As hot as it will be over the next four days, we are unlikely to get any records. Here are the record high temperatures and their respective years they were set, you will notice a commonality.

May 30: 96, 1929

May 31: 96, 1944

June 1: 96, 1879

June 2: 96, 1895

Easy to remember, 96 degrees is the record for each of the next four days! I think we will make our closest run for the record books on Friday, when our current forecast high is 94.

As is typical during heat waves, the humidity will also be a factor.  In the peak of the heat, during the afternoons, the heat index (the summer feels-like temperature) will be right around 100 degrees, so take it easy if you have outdoor plans.

You can follow Terry on Twitter at @TerryWBZ.


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