Sunday
Chance of thunderstorms
High:
87°F
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Heat index values as high as 100. Southwest wind 10 to 14 mph, with gusts as high as 18 mph.
Key Biscayne, FL Weather - Tomorrow’s Forecast
Sunday Night
Partly cloudy
Overnight low:
82°F
Partly cloudy, with a low around 82. South wind 7 to 13 mph.