Key Biscayne, FL

Current conditions, hourly and 7-day forecast, and live radar for Key Biscayne, FL 33149. Right now: chance showers and thunderstorms, 83°F. Data from the National Weather Service.

• Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 83. East wind around 15 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
• Thursday: Showers and thunderstorms likely. Partly sunny, with a high near 88. Heat index values as high as 104. Southeast wind 9 to 14 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
• Thursday Night: A chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 84. Heat index values as high as 100. Southeast wind 8 to 13 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
• Friday: Showers and thunderstorms likely between 7am and 5pm, then showers and thunderstorms likely. Mostly sunny, with a high near 89. Heat index values as high as 104. Southeast wind around 12 mph. Chance of precipitation is 60%.
• Friday Night: Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 83. East wind 9 to 14 mph. Chance of precipitation is 60%.
• Saturday: A chance of showers and thunderstorms before 8am, then showers and thunderstorms likely between 8am and 11am, then showers and thunderstorms. Mostly sunny, with a high near 88. East wind around 13 mph. Chance of precipitation is 80%.