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.

Thunderstorm Light Rain

77°F

25°C

Humidity 82%
Wind Speed SE 7 mph
Barometer 29.99 in (1015.6 mb)
Dewpoint 71°F (22°C)
Visibility 8.00 mi
Heat Index79°F (26°C)
Last update 13 Mar 2:53 pm EDT
Extended Forecast for

Key Biscayne FL

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. Southeast wind around 8 mph.

    High: 80 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly between 2am and 5am. Partly cloudy, with a low around 74. South wind around 6 mph.

    Low: 74 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 80. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 80 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. Southeast wind 9 to 13 mph.

    Low: 76 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. Southeast wind around 15 mph.

    High: 80 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Breezy, with a southeast wind 13 to 18 mph.

    Low: 77 °F

    Chance
    T-storms then
    Chance
    Showers and
    Breezy

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82. Breezy, with a south wind around 18 mph, with gusts as high as 23 mph.

    High: 82 °F

    Breezy.
    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Southwest wind around 15 mph. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Cloudy, with a high near 72. Windy, with a north wind 17 to 21 mph.

    High: 72 °F

    Chance
    T-storms and
    Windy

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. Southeast wind around 8 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly between 2am and 5am. Partly cloudy, with a low around 74. South wind around 6 mph.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 80. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. Southeast wind 9 to 13 mph.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. Southeast wind around 15 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Breezy, with a southeast wind 13 to 18 mph.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82. Breezy, with a south wind around 18 mph, with gusts as high as 23 mph.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Southwest wind around 15 mph. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers and thunderstorms. Cloudy, with a high near 72. Windy, with a north wind 17 to 21 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 65. Windy.
Wednesday
A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 71. Windy.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 68. Windy.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 74. Windy.
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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:
2:32 pm EDT Mar 13, 2026
Forecast Valid:
3pm EDT Mar 13, 2026-6pm EDT Mar 19, 2026
 
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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