Heat Index Could Top 100 Degrees On Long Island

There's hot and then there's "you've got to be kidding me" hot. We are getting the latter Sunday and Monday on Long Island.

A heat advisory will be in effect from noon Sunday until 8 p.m. Monday for the entire island except for the South Fork. Temperatures are expected to reach the mid-90s in some areas. Throw in the humidity and it will feel closer to 100 degrees Sunday afternoon.

On Monday afternoon, heat index values should be even higher as humidity increases ahead of an approaching cool front. The heat index could reach 103 degrees on the island.

The front may also trigger a few Monday afternoon thunderstorms as it passes through, as well as bring a return to temperatures closer to average for the rest of next week.

Take extra precautions if you work or spend time outside Sunday or Monday. When possible, reschedule strenuous activities to early morning or evening, the weather service says. Know the signs and symptoms of heat exhaustion and heat stroke.

If you are heading to the beach Sunday, don't sleep in. Robert Moses State Park was filled to capacity by 9:40 a.m Saturday.

The full forecast:

Saturday Night- Partly cloudy, with a steady temperature around 76. South wind 5 to 7 mph.

Sunday- Sunny, with a high near 95. Southwest wind 5 to 10 mph.

Sunday Night- Mostly clear, with a low around 75. South wind 8 to 13 mph.

Monday- A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 94. Heat index values as high as 101. Southwest wind around 9 mph.

Monday Night- A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 75. West wind 6 to 8 mph becoming north after midnight.

Tuesday- Mostly sunny, with a high near 90.

Tuesday Night- Partly cloudy, with a low around 75.

Wednesday- A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.

Wednesday Night- Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.

Thursday- A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.

Thursday Night- A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.

Friday- Mostly sunny, with a high near 86.