| NWS Forecast for: Key Biscayne FL Issued by: National Weather Service Miami - South Florida Last Update: 11:31 pm EDT Jul 12, 2025 |  |
Tonight: A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 79. South wind around 6 mph. Sunday: A 40 percent chance of showers and thunderstorms, mainly after 9am. Mostly sunny, with a high near 88. Heat index values as high as 100. Light and variable wind becoming southeast around 6 mph in the afternoon. Sunday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 78. Southwest wind around 7 mph becoming northwest after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Monday: Showers likely and possibly a thunderstorm before 8am, then showers and thunderstorms likely between 8am and 5pm, then showers and possibly a thunderstorm after 5pm. High near 86. West wind around 7 mph becoming south in the afternoon. Chance of precipitation is 80%. Monday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Low around 77. Southwest wind around 8 mph. Chance of precipitation is 80%. Tuesday: Showers likely and possibly a thunderstorm before 11am, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 85. South wind 8 to 10 mph. Chance of precipitation is 70%. Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 80. Southeast wind 10 to 13 mph. Wednesday: Showers and thunderstorms likely. Partly sunny, with a high near 85. Southeast wind around 14 mph. Chance of precipitation is 60%. Wednesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 82. Southeast wind 10 to 14 mph. Thursday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Breezy. Thursday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83. Friday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Breezy. Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83. Saturday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. | |
| Key Biscayne FL 25.69°N 80.17°W | |
Visit your local NWS office at: https://www.weather.gov/mfl |
