Heat Index To Flirt With 100 Degrees On Long Island

If you missed the unbearable heat and humidity the last few days, you are in luck! It's returning with a vengeance beginning Monday as temperatures approach 90 degrees on Long Island.

It will be even hotter on Tuesday and Wednesday. A heat advisory will be in effect for the island on both days. The National Weather Service says heat index values – how hot it feels with humidity factored in – could reach a high of 104 degrees.

Things will "cool down" a bit come the end of the workweek, but the initial Labor Day weekend forecast looks a bit dicey. There's a chance of rain Friday night through Sunday, the NWS says.

The full forecast:

Monday- Sunny, with a high near 88. Southwest wind 3 to 7 mph.

Monday Night- Patchy fog after 1am. Otherwise, partly cloudy, with a low around 74. Southwest wind 6 to 8 mph.

Tuesday- Patchy fog before 7am. Otherwise, sunny, with a high near 92. Heat index values as high as 100. West wind 7 to 9 mph.

Tuesday Night- Mostly clear, with a low around 77. Southwest wind 5 to 9 mph.

Wednesday- Sunny, with a high near 93. Southwest wind 5 to 11 mph.

Wednesday Night
Mostly clear, with a low around 76.

Thursday- A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89.

Thursday Night- Mostly cloudy, with a low around 69.

Friday- Partly sunny, with a high near 80.

Friday Night- A 30 percent chance of showers. Mostly cloudy, with a low around 66.

Saturday- A 30 percent chance of showers. Mostly cloudy, with a high near 76.

Saturday Night- A 30 percent chance of showers. Mostly cloudy, with a low around 67.

Sunday- A 30 percent chance of showers. Mostly cloudy, with a high near 81.

Photo by Laura Ann/The sun rises over Westhampton Monday.