Minnesotans are preparing for another round of dangerous heat this weekend.
An Extreme Heat Warning takes effect Saturday afternoon for the Twin Cities and much of central and southern Minnesota. Additional areas remain under an Extreme Heat Watch for Sunday.
The National Weather Service says temperatures in the 90s, combined with high humidity, could produce heat-index readings between 101 and 106 degrees. Overnight temperatures may remain in the 70s, providing little relief.…