Steamy Sunday on Key Biscayne | Key Biscayne

It will be a hot Sunday on Key Biscayne, with a high around 88-89 degrees and heat index values above 105 expected, triggering a Heat Advisory from the National Weather Service in Miami until 6 p.m.

Expect plenty of sunshine with some clouds mixed in and a stray shower or thunderstorm possible. Winds will be out of the ESE at 10 to 20 mph.

Tonight, partly cloudy with a stray shower or thunderstorm possible and a low of 84 degrees.

Monday, partly cloudy with a stray shower or thunderstorm possible and a high near 90 degrees.

For hour-by-hour Key Biscayne weather updates and local radar, click here.