NYC Weather: Heatwave Continues, Thunderstorms In Forecast

NEW YORK CITY — Temperatures in New York City likely will crack triple digits on Monday.

The city is under a heat advisory until 8 p.m. as heat indices are expected to reach up to 103 degrees. The heat wave is so severe that Mayor Bill de Blasio took time out of daily briefing to warn New Yorkers.

Take it seriously, don't underestimate the heat and keep an eye on your family and neighbors, he said.

"This is a day to be safe," he said.

The sweltering, dangerous temperatures come after a particularly-steamy Sunday. The heat index will likely be in the triple digits throughout Monday afternoon, the National Weather Service said.

It's a good day to sit next to the AC.

And for New Yorkers without chilly indoor air, de Blasio gave a rundown of cooling options the city will have open this week: 160 cooling centers, 230 cooling and misting locations, hundreds of hydrants opened, spray showers in City Parks and specially-designated "Cool Streets."

People who need more information can visit nyc.gov/beattheheat.

Though Monday will be the hottest, the heat is set to continue all week, with thunderstorms Wednesday night expected to bring up to a quarter of an inch of rain.

Here's the forecast in more detail, courtesy of the National Weather Service:

Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 97. Heat index values as high as 102. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

Monday Night
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 76. Northwest wind around 6 mph becoming calm in the evening.

Tuesday
Mostly sunny, with a high near 93. Light and variable wind.

Tuesday Night
A 20 percent chance of showers and thunderstorms after 9pm. Partly cloudy, with a low around 76. Calm wind.

Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming south 5 to 9 mph in the morning.

Wednesday Night
Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 75. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.

Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.

Friday
Sunny, with a high near 86.