New York City starts Monday with clear skies and temperatures around 73 degrees, but the heat will build quickly. A heat advisory remains in effect through 7 p.m. as temperatures climb to about 87 degrees and the heat index reaches as high as 98.
The morning should stay mostly sunny, with temperatures rising through the 70s and low 80s before the first storm chances arrive. The National Weather Service is calling for a slight chance of showers and thunderstorms after 2 p.m., with storms becoming more likely late Monday afternoon and evening.
Heat Peaks Before Evening Storms
Storm chances increase around 5 p.m. and may continue until roughly 11 p.m., with brief downpours and lightning possible. A southwest breeze around 10 mph will develop later in the day, and overnight rainfall could total between a tenth and a quarter of an inch.
With heat and humidity pushing the heat index close to 100, New Yorkers should limit strenuous outdoor activity during the afternoon, drink plenty of water and check on older neighbors or anyone with health conditions. Air conditioning or another cool indoor space will be especially important for people without reliable home cooling.
Tuesday Starts A Slow Cooldown
Tuesday will remain warm but drier and mostly sunny, with a high near 86 degrees. Wednesday should be mostly sunny and a little cooler at 84, followed by mid-80s Thursday and Friday.
The biggest relief arrives by Friday night, when temperatures are expected to fall to around 68 degrees. The weekend stays comparatively comfortable, with highs near 82, though slight rain-shower chances return Saturday afternoon and continue into Sunday.
Coastal Water Levels May Run High Midweek
No coastal flooding is expected Monday night, but rising astronomical tides could bring minor flooding to some waterfront areas Tuesday night and especially Wednesday night. The most vulnerable spots may include the south shore bays of Queens, parts of New York Harbor and sections of the western Long Island Sound.
