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

76°F

24°C

Humidity 74%
Wind Speed W 3 mph
Barometer 29.91 in (1012.9 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 1 May 12:53 am EDT
Extended Forecast for

Key Biscayne FL

  • Overnight

    Overnight: Partly cloudy, with a low around 74. West wind around 8 mph.

    Low: 74 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 84. West wind 5 to 10 mph becoming south in the morning.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 79. South wind 9 to 15 mph.

    Low: 79 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 87. Breezy, with a south wind 16 to 18 mph, with gusts as high as 22 mph.

    High: 87 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Isolated showers and thunderstorms after 2am. Partly cloudy, with a low around 78. Southwest wind 11 to 14 mph. Chance of precipitation is 20%.

    Low: 78 °F

    Partly Cloudy
    then Isolated
    T-storms

  • Sunday

    Sunday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. West wind around 11 mph becoming northwest in the afternoon. Chance of precipitation is 70%.

    High: 82 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 75. Northeast wind 11 to 15 mph. Chance of precipitation is 60%.

    Low: 75 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am. Mostly cloudy, with a high near 80. Breezy, with a northeast wind 15 to 17 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    High: 80 °F

    Breezy.
    Showers
    Likely 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 75. Breezy, with an east wind 10 to 16 mph.

    Low: 75 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Overnight
Partly cloudy, with a low around 74. West wind around 8 mph.
Friday
Sunny, with a high near 84. West wind 5 to 10 mph becoming south in the morning.
Friday Night
Mostly clear, with a low around 79. South wind 9 to 15 mph.
Saturday
Mostly sunny, with a high near 87. Breezy, with a south wind 16 to 18 mph, with gusts as high as 22 mph.
Saturday Night
Isolated showers and thunderstorms after 2am. Partly cloudy, with a low around 78. Southwest wind 11 to 14 mph. Chance of precipitation is 20%.
Sunday
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. West wind around 11 mph becoming northwest in the afternoon. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 75. Northeast wind 11 to 15 mph. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am. Mostly cloudy, with a high near 80. Breezy, with a northeast wind 15 to 17 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 75. Breezy, with an east wind 10 to 16 mph.
Tuesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Tuesday Night
Mostly cloudy, with a low around 77.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 78.
Thursday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Key Biscayne FL
 25.69°N 80.17°W
Last Update:
4:32 pm EDT Apr 30, 2026
Forecast Valid:
1am EDT May 1, 2026-6pm EDT May 7, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation