Several swimming areas at beaches across southwestern Connecticut were closed today as a potential heat wave starts in the state.

Penfield Beach had plenty of beachgoers Tuesday, yet nobody was allowed in the water because Monday’s storm created unsafe health conditions.

First Selectwoman Brenda Kupchick told News 12 that the rain may have left unsafe bacteria in Long Island Sound. As a result, beaches across Fairfield County were shut down by state order.

"We can't do much about it, so you just go inside air conditioning or take a lot of showers,” said one beachgoer.

Swimming at Fairfield beaches is closed until Thursday.

Swimming is allowed at Greenwich and Milford beaches.

However, swimming at Stamford, Stratford, Darien, and Norwalk beaches if off limits.