LI Weather: Thunderstorms, Heavy Rain Could Ruin July Fourth Plans

LONG ISLAND, NY — A hazardous weather warning could put a damper on Long Islanders' Fourth of July plans. Heavy rain and thunderstorms are likely on Saturday, and could lead to damaging winds and flooding.

According to the National Weather Service, Friday will be beautiful and sunny. But rain could move in tonight. But Saturday is when the bad weather hits.

Forecasts call for thunderstorms for most of the day Saturday, which could have high wind gusts and heavy rain at times. The rain may carry into Sunday as well.

Luckily, July 4 itself is looking to be a gorgeous, sunny day, with a high around 84 degrees.

Here's the full weekend forecast from the National Weather Service:

Today: Mostly sunny, with a high near 87. South wind 9 to 15 mph.

Tonight: A 50 percent chance of showers and thunderstorms, mainly after 2 a.m. Mostly cloudy, with a low around 70. Southwest wind 10 to 15 mph.

Saturday: Showers likely and possibly a thunderstorm, then showers and thunderstorms after 10 a.m. Some of the storms could produce gusty winds and heavy rain. High near 86. Southwest wind around 10 mph. Chance of precipitation is 80 percent. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night: Showers and thunderstorms, mainly before 8 p.m. Some of the storms could produce gusty winds and heavy rain. Low around 68. Southwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 80 percent. New rainfall amounts between a quarter and half of an inch possible.

Sunday: A slight chance of showers and thunderstorms before 8 a.m., then a slight chance of showers between 8 a.m. and 2 p.m. Partly sunny, with a high near 85. North wind around 6 mph. Chance of precipitation is 20 percent.

Sunday Night: Mostly clear, with a low around 65.

Independence Day: Sunny, with a high near 84.

Monday Night: Partly cloudy, with a low around 67