Fans were allowed to return to their seats at Soldier Field late Wednesday after being told to seek shelter during the Copa America semifinal game.
The stadium tweeted fans should seek shelter immediately amid severe weather in the area, but said the teams were expected to return to the field at 10 p.m. for a 20-minute warm up.
The game is expected to resume at 10:25 p.m.
A Severe Thunderstorm Warning was issued for Cook County until 9:15 p.m. and a Tornado Watch that was in effect until 1 a.m. was later canceled.
Lightning was spotted near the home of the NFL's Chicago Bears around halftime.
Chile led 2-0 at the time.
No injuries were reported.