 I'm John Collins, Minneapolis. After a warm day across Minnesota today, temperatures will keep climbing tomorrow with the warmest weather of the summer so far expected this weekend. NPR meteorologist Sven Sundgaard says highs will reach 90 degrees across much of the region Saturday and Sunday with muggy dew points making it feel even warmer. Heat index values on Sunday afternoon, probably mid to upper 90s for most of southern Minnesota with some triple digit values possible, especially in southwestern Minnesota, but even the Twin Cities, especially Sunday afternoon.