FORT WAYNE, Ind. (21Alive) – Savor the cool weather while it lasts because temperatures will return to the 80s for most of next week. Temperatures are expected to slip into the low 40s, and some communities could get down into the 30s early Sunday morning. The forecast low for the night is 40°. If it gets that cold, the record set back in 1962 of 41° will be broken.