Monday
Mostly sunny
High:
88°F
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 88. Heat index values as high as 103. Light and variable wind becoming east 5 to 7 mph in the afternoon.
Key Biscayne, FL Weather - Tomorrow’s Forecast
Monday Night
Chance of thunderstorms
Overnight low:
82°F
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 82. East wind around 7 mph.