A transformer failure on Chicago's Northwest Side caused several thousand residents to lose power overnight as temperatures struggled to dip below 80 degrees.

Apower outage Wednesday night left 8,000 without power in Jefferson Parish. A parish leader said the outage was reportedly caused by a breaker failure. Some residents are still without power.

Overnight power outage in Jefferson Parish caused by breaker failure, official says Jefferson Parish Emergency Management Director Joe Valiente said the breaker failure resulted in a line explosion.

A transformer failure on Chicago's Northwest Side caused several thousand residents to lose power overnight as temperatures struggled to dip below 80 degrees.