It's this time of the year again. We just want to scurry to the rivers and jump right in. But not so soon this time.

New York City warned people to stay out of the Hudson and Harlem Rivers on one of the hottest weekends of the year after millions of gallons of untreated sewage discharged from Manhattan into the waterways because of a four-alarm fire that shut down one of the city's largest sewage treatment plants.

The city's drinking water has not been impacted, officials said, but people have been warned not to swim or kayak on the rivers through at least Monday.

Large parts of the East River and the Kill Van Kull have also been declared unfit for swimming through the weekend by the New York City Health Department. Updates on the conditions of rivers will be posted on the department's website, www.nyc.gov/health.

Right now, there's no impact on public beaches, Commissioner Cas Holloway, of the city's Department of Environmental Protection, which runs the plant, told the New York Daily News.

However, you should not be doing contact recreation on the Hudson River, he told the paper.

Temperatures in the New York area were forecast to soar into the triple digits on Friday .

The city has also warned against eating fish caught in these waterways, NBC New York reported.