The Sun reported that the second-half was delayed because of thunder and lightning at the King Power Stadium.
Referee Darren England called Leicester boss Steve Cooper and Everton's Sean Dyche together in the tunnel to discuss the sitation. He was also seen testing the pitch by bouncing a ball on it.
The players were lining the tunnel as the torrential downpour continued.
Eventually, England chose to push back the kickoff and wait for the weather to clear.