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

73°F

23°C

Humidity 74%
Wind Speed W 6 mph
Barometer 29.97 in (1014.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 15 May 6:53 am EDT
Extended Forecast for

Key Biscayne FL

  • Today

    Today: Sunny, with a high near 84. West wind 5 to 11 mph becoming southeast in the afternoon.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 81. South wind 8 to 13 mph.

    Low: 81 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms between 2pm and 4pm. Sunny, with a high near 84. East wind 9 to 13 mph. Chance of precipitation is 20%.

    High: 84 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 81. East wind around 15 mph. Chance of precipitation is 40%.

    Low: 81 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 83. East wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 82. Breezy, with an east wind 16 to 18 mph. Chance of precipitation is 40%.

    Low: 82 °F

    Chance
    T-storms and
    Breezy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83. Breezy, with an east wind around 16 mph, with gusts as high as 20 mph.

    High: 83 °F

    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 82. Breezy, with an east wind 17 to 20 mph.

    Low: 82 °F

    Chance
    Showers and
    Breezy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms. Sunny, with a high near 83. Breezy, with an east wind around 16 mph, with gusts as high as 20 mph.

    High: 83 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Today
Sunny, with a high near 84. West wind 5 to 11 mph becoming southeast in the afternoon.
Tonight
Partly cloudy, with a low around 81. South wind 8 to 13 mph.
Saturday
A slight chance of showers and thunderstorms between 2pm and 4pm. Sunny, with a high near 84. East wind 9 to 13 mph. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 81. East wind around 15 mph. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 83. East wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 82. Breezy, with an east wind 16 to 18 mph. Chance of precipitation is 40%.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83. Breezy, with an east wind around 16 mph, with gusts as high as 20 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 82. Breezy, with an east wind 17 to 20 mph.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 83. Breezy, with an east wind around 16 mph, with gusts as high as 20 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 81. Breezy.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 83.
Wednesday Night
A 20 percent chance of showers. Mostly clear, with a low around 81.
Thursday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Key Biscayne FL
 25.69°N 80.17°W
Last Update:
3:46 am EDT May 15, 2026
Forecast Valid:
7am EDT May 15, 2026-6pm EDT May 21, 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