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.

Light Rain

82°F

28°C

Humidity 85%
Wind Speed E 10 mph
Barometer 30.04 in (1017.1 mb)
Dewpoint 77°F (25°C)
Visibility 9.00 mi
Heat Index90°F (32°C)
Last update 15 Oct 11:53 pm EDT
Extended Forecast for

Key Biscayne FL

  • Overnight

    Overnight: A chance of showers and thunderstorms before 5am, then a slight chance of showers. Partly cloudy, with a low around 82. East wind around 14 mph. Chance of precipitation is 30%.

    Low: 82 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 87. Heat index values as high as 100. Southeast wind 9 to 11 mph. Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 81. East wind 3 to 6 mph.

    Low: 81 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 86. Light and variable wind becoming north around 6 mph in the morning. Chance of precipitation is 80%.

    High: 86 °F

    Chance
    T-storms then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 78. Breezy, with a north wind 9 to 17 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 78 °F

    Showers and
    Breezy

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 83. Windy, with a northeast wind 21 to 24 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.

    High: 83 °F

    Showers and
    Windy

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 77. Windy, with a northeast wind 26 to 29 mph, with gusts as high as 32 mph. Chance of precipitation is 80%.

    Low: 77 °F

    Showers and
    Windy

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Mostly sunny, with a high near 83. Windy, with a northeast wind 25 to 28 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely and
    Windy

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. Windy, with a northeast wind around 25 mph, with gusts as high as 29 mph.

    Low: 77 °F

    Chance
    T-storms and
    Windy

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 5am, then a slight chance of showers. Partly cloudy, with a low around 82. East wind around 14 mph. Chance of precipitation is 30%.
Friday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 87. Heat index values as high as 100. Southeast wind 9 to 11 mph. Chance of precipitation is 20%.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 81. East wind 3 to 6 mph.
Saturday
A slight chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 86. Light and variable wind becoming north around 6 mph in the morning. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm. Low around 78. Breezy, with a north wind 9 to 17 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Sunday
Showers and possibly a thunderstorm. High near 83. Windy, with a northeast wind 21 to 24 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 77. Windy, with a northeast wind 26 to 29 mph, with gusts as high as 32 mph. Chance of precipitation is 80%.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Mostly sunny, with a high near 83. Windy, with a northeast wind 25 to 28 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. Windy, with a northeast wind around 25 mph, with gusts as high as 29 mph.
Tuesday
A 50 percent chance of showers and thunderstorms. Sunny, with a high near 84. Windy.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly clear, with a low around 76. Windy.
Wednesday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 84. Windy.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 76. Windy.
Thursday
A 50 percent chance of showers and thunderstorms. Sunny, with a high near 84. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
Key Biscayne FL
 25.69°N 80.17°W
Last Update:
3:46 pm EDT Oct 15, 2026
Forecast Valid:
12am EDT Oct 16, 2026-6pm EDT Oct 22, 2026
 
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Additional Resources

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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