National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Miami, Miami International Airport (KMIA)

Lat: 25.79°NLon: 80.32°WElev: 10ft.

A Few Clouds

75°F

24°C

Humidity 82%
Wind Speed E 9 mph
Barometer 30.11 in (1019.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 11 Mar 3:53 am EDT
Extended Forecast for

Key Biscayne FL

  • Today

    Today: Sunny, with a high near 80. Southeast wind around 13 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 76. East wind around 13 mph.

    Low: 76 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 82. South wind 10 to 14 mph.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Southwest wind 6 to 11 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. Northeast wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 75. Southeast wind around 7 mph.

    Low: 75 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely after 2pm. Partly sunny, with a high near 80. Southeast wind 6 to 10 mph. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 76. Southeast wind 8 to 11 mph. Chance of precipitation is 60%.

    Low: 76 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 81. Southeast wind around 14 mph. Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 80. Southeast wind around 13 mph.
Tonight
Partly cloudy, with a low around 76. East wind around 13 mph.
Thursday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 82. South wind 10 to 14 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Southwest wind 6 to 11 mph becoming west after midnight. Chance of precipitation is 20%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. Northeast wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 40%.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 75. Southeast wind around 7 mph.
Saturday
A chance of showers and thunderstorms, then showers likely after 2pm. Partly sunny, with a high near 80. Southeast wind 6 to 10 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 76. Southeast wind 8 to 11 mph. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 81. Southeast wind around 14 mph. Chance of precipitation is 70%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Breezy.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Chance of precipitation is 60%.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Key Biscayne FL
 25.69°N 80.17°W
Last Update:
3:51 am EDT Mar 11, 2026
Forecast Valid:
4am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation