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

90°F

32°C

Humidity 56%
Wind Speed SE 8 G 21 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 7 May 3:53 pm EDT
Extended Forecast for

Key Biscayne FL

  • Tonight

    Tonight: Mostly clear, with a low around 78. South wind 8 to 15 mph becoming west after midnight.

    Low: 78 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 82. Southeast wind 8 to 11 mph.

    Low: 82 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86. South wind 7 to 14 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 83. Southeast wind 9 to 11 mph.

    Low: 83 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 85. South wind 11 to 13 mph.

    High: 85 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 83. South wind 7 to 10 mph.

    Low: 83 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. South wind 7 to 11 mph.

    High: 85 °F

    Partly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 81. South wind 6 to 9 mph becoming west after midnight.

    Low: 81 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 78. South wind 8 to 15 mph becoming west after midnight.
Friday
Sunny, with a high near 85. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 82. Southeast wind 8 to 11 mph.
Saturday
Mostly sunny, with a high near 86. South wind 7 to 14 mph.
Saturday Night
Partly cloudy, with a low around 83. Southeast wind 9 to 11 mph.
Sunday
Partly sunny, with a high near 85. South wind 11 to 13 mph.
Sunday Night
Partly cloudy, with a low around 83. South wind 7 to 10 mph.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. South wind 7 to 11 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 81. South wind 6 to 9 mph becoming west after midnight.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 81.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Wednesday Night
A 10 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 81.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Key Biscayne FL
 25.69°N 80.17°W
Last Update:
3:41 pm EDT May 7, 2026
Forecast Valid:
4pm EDT May 7, 2026-6pm EDT May 14, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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