Twin Cities heat index into triple digits for Sunday and Monday

Let's get it out of the way right now...

Me mind on fire
Me soul on fire, feeling hot, hot, hot
Party people
All around me feeling hot, hot, hot

Yes, the melodious words of Buster Poindexter again filling us in on a hot spell to end all hot spells.

And it is going to be a hot one.

The National Weather Service has an excessive heat advisory in effect through Monday for the Twin Cities and southern Minnesota

"It's not going to be just run-of-the-mill, into the 90's," said forecaster Joe Calderone from the Chanhassen bureau. "We're expecting heat index values exceeding 100 degrees. It's just going to be very hot and oppressive outside."

And that's just for starters on Sunday in the metro.

"Tomorrow, much of southern Minnesota getting 105-110," he said.  "And that will include the Twin Cities."

And it comes as the Minnesota State Fair moves through its first weekend.

There are several places to get water on the fairgrounds, one of them the WCCO radio building.

Then there are nearly a dozen misters placed in strategic spots throughout the historic fairgrounds, and some buildings are air-conditioned.

"You want to limit outdoor activities, take plenty of water breaks, air conditioning breaks," said Calderone.

After the heat lifts comes a nice change to finish up the month of August.

"By the time we get to Tuesday, we're going to see a significant drop in both the heat and humidity," Calderone said, noting that the high temperature that day will be ten degrees lower that both Sunday and Monday, with much lower humidity.

By late in the week, temperatures will top out in the 70's in the Twin Cities.

But before that, with the heat moving out and a cold front moving in, there is a chance of thunderstorm activity for the region.