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

75°F

24°C

Humidity 90%
Wind Speed E 5 mph
Barometer 29.98 in (1015.3 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 15 Mar 4:53 am EDT
Extended Forecast for

Key Biscayne FL

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms. Some of the storms could produce heavy rainfall. Partly cloudy, with a low around 75. Southeast wind around 13 mph.

    Low: 75 °F

    Heavy Rain

  • Sunday

    Sunday: A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Some of the storms could produce heavy rainfall. Increasing clouds, with a high near 80. Southeast wind around 15 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 80 °F

    Heavy Rain
    then Showers
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly between midnight and 5am. Cloudy during the early evening, then gradual clearing, 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 chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 82. Breezy, with a south wind around 18 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    High: 82 °F

    Breezy.
    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 68. Southwest wind 13 to 15 mph. Chance of precipitation is 70%.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am. Cloudy, with a high near 73. Breezy, with a north wind 15 to 18 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 73 °F

    Breezy.
    Showers
    Likely then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Cloudy, with a low around 66. Windy, with a north wind around 23 mph. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers and
    Windy

  • Wednesday

    Wednesday: A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Cloudy, with a high near 72. Windy, with a northeast wind 18 to 22 mph. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely and
    Windy

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Cloudy, with a low around 68. Windy, with a northeast wind 18 to 23 mph. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely and
    Windy

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Some of the storms could produce heavy rainfall. Partly cloudy, with a low around 75. Southeast wind around 13 mph.
Sunday
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Some of the storms could produce heavy rainfall. Increasing clouds, with a high near 80. Southeast wind around 15 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly between midnight and 5am. Cloudy during the early evening, then gradual clearing, with a low around 77. Breezy, with a southeast wind 13 to 18 mph.
Monday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 82. Breezy, with a south wind around 18 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 68. Southwest wind 13 to 15 mph. Chance of precipitation is 70%.
Tuesday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am. Cloudy, with a high near 73. Breezy, with a north wind 15 to 18 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms. Cloudy, with a low around 66. Windy, with a north wind around 23 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Cloudy, with a high near 72. Windy, with a northeast wind 18 to 22 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Cloudy, with a low around 68. Windy, with a northeast wind 18 to 23 mph. Chance of precipitation is 60%.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74. Windy.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 66. Windy.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 74. Breezy.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Key Biscayne FL
 25.69°N 80.17°W
Last Update:
4:17 am EDT Mar 15, 2026
Forecast Valid:
5am EDT Mar 15, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation