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.

Partly Cloudy

87°F

31°C

Humidity 57%
Wind Speed E 12 G 17 mph
Barometer 30.10 in (1019.3 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 16 May 12:53 pm EDT
Extended Forecast for

Key Biscayne FL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. East wind around 13 mph.

    High: 84 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 81. East wind around 15 mph.

    Low: 81 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. East wind around 14 mph, with gusts as high as 18 mph.

    High: 84 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 82. Breezy, with an east wind around 18 mph. Chance of precipitation is 60%.

    Low: 82 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Breezy, with an east wind around 17 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely and
    Breezy

  • Monday Night

    Monday 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 18 to 20 mph. Chance of precipitation is 40%.

    Low: 82 °F

    Chance
    Showers and
    Breezy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Sunny, with a high near 83. Breezy, with an east wind around 17 mph, with gusts as high as 21 mph.

    High: 83 °F

    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 81. Breezy, with an east wind 16 to 18 mph.

    Low: 81 °F

    Chance
    T-storms and
    Breezy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 2pm. Sunny, with a high near 83. East wind around 15 mph, with gusts as high as 18 mph.

    High: 83 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. East wind around 13 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 81. East wind around 15 mph.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. East wind around 14 mph, with gusts as high as 18 mph.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 82. Breezy, with an east wind around 18 mph. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Breezy, with an east wind around 17 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Monday 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 18 to 20 mph. Chance of precipitation is 40%.
Tuesday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 83. Breezy, with an east wind around 17 mph, with gusts as high as 21 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 81. Breezy, with an east wind 16 to 18 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 2pm. Sunny, with a high near 83. East wind around 15 mph, with gusts as high as 18 mph.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 82. Breezy. Chance of precipitation is 20%.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 84.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 82.
Friday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 84.
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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:
4:17 am EDT May 16, 2026
Forecast Valid:
1pm EDT May 16, 2026-6pm EDT May 22, 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