This is a question I field quite often at WCCO.
It has been hot — the second warmest July on record — and humid this summer.
On Wednesday, we warmed to 92 degrees in the Twin Cities. That marks the 25th time this summer we have hit 90 degrees or warmer.
It will stay hot and humid through Friday, and we should remain dry until late Friday night.
A front will swing through late (sorry Toby Keith fans at WE Fest) that will trigger some storms, but bring major change to the region.
The dew points will rapidly drop into the 50s during the day on Saturday, and it will only reach the upper 70s in most towns on Sunday.
So, this weekend is the time to turn off the air.