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

82°F

28°C

Humidity 74%
Wind Speed SE 5 mph
Barometer 30.05 in (1017.7 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 21 Jun 4:53 am EDT
Extended Forecast for

Key Biscayne FL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 83. Southeast wind around 10 mph.

    Low: 83 °F

    Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly between 7am and 4pm. Sunny, with a high near 86. Southeast wind around 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 10pm. Partly cloudy, with a low around 82. East wind around 14 mph.

    Low: 82 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 11am, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 86. East wind around 14 mph. Chance of precipitation is 70%.

    High: 86 °F

    T-storms
    Likely

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83. Breezy, with an east wind around 16 mph.

    Low: 83 °F

    Chance
    T-storms and
    Breezy

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 11am, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 86. Breezy, with an east wind around 16 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 86 °F

    T-storms
    Likely and
    Breezy

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 82. Breezy, with an east wind around 17 mph, with gusts as high as 20 mph.

    Low: 82 °F

    Chance
    T-storms and
    Breezy

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 86. Breezy, with an east wind around 16 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely and
    Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 82. Breezy, with an east wind 14 to 16 mph.

    Low: 82 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 83. Southeast wind around 10 mph.
Saturday
A 50 percent chance of showers and thunderstorms, mainly between 7am and 4pm. Sunny, with a high near 86. Southeast wind around 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 10pm. Partly cloudy, with a low around 82. East wind around 14 mph.
Sunday
Showers likely and possibly a thunderstorm before 11am, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 86. East wind around 14 mph. Chance of precipitation is 70%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83. Breezy, with an east wind around 16 mph.
Monday
Showers likely and possibly a thunderstorm before 11am, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 86. Breezy, with an east wind around 16 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 82. Breezy, with an east wind around 17 mph, with gusts as high as 20 mph.
Tuesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 86. Breezy, with an east wind around 16 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 82. Breezy, with an east wind 14 to 16 mph.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 82.
Thursday
A 50 percent chance of showers and thunderstorms. Sunny, with a high near 86.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 82.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Key Biscayne FL
 25.66°N 80.15°W
Last Update:
4:21 am EDT Jun 21, 2025
Forecast Valid:
5am EDT Jun 21, 2025-6pm EDT Jun 27, 2025
 
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