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.

Overcast

85°F

29°C

Humidity 72%
Wind Speed Calm
Barometer 30.09 in (1019.0 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 13 Jul 2:53 pm EDT
Extended Forecast for

Key Biscayne FL

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely. Partly sunny, with a high near 88. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 79. South wind around 7 mph becoming northwest after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 79 °F

    T-storms
    Likely

  • Monday

    Monday: Showers and thunderstorms, mainly after 11am. Some of the storms could produce heavy rainfall. High near 86. West wind around 7 mph becoming south in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 86 °F

    Heavy Rain

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 7pm, then showers and thunderstorms likely between 7pm and 11pm, then showers likely and possibly a thunderstorm after 11pm. Some of the storms could produce heavy rainfall. Low around 78. South wind around 8 mph. Chance of precipitation is 80%.

    Low: 78 °F

    Heavy Rain
    then Showers
    Likely

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 2pm, then showers and thunderstorms between 2pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 84. South wind 9 to 11 mph. Chance of precipitation is 80%.

    High: 84 °F

    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly before 8pm, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 80. Southeast wind 10 to 13 mph. Chance of precipitation is 60%.

    Low: 80 °F

    T-storms
    Likely then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms likely. Partly sunny, with a high near 86. Southeast wind 13 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.

    High: 86 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 83. Southeast wind 10 to 14 mph.

    Low: 83 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Southeast wind 13 to 15 mph, with gusts as high as 18 mph.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms likely. Partly sunny, with a high near 88. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 79. South wind around 7 mph becoming northwest after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms, mainly after 11am. Some of the storms could produce heavy rainfall. High near 86. West wind around 7 mph becoming south in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and possibly a thunderstorm before 7pm, then showers and thunderstorms likely between 7pm and 11pm, then showers likely and possibly a thunderstorm after 11pm. Some of the storms could produce heavy rainfall. Low around 78. South wind around 8 mph. Chance of precipitation is 80%.
Tuesday
Showers and possibly a thunderstorm before 2pm, then showers and thunderstorms between 2pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 84. South wind 9 to 11 mph. Chance of precipitation is 80%.
Tuesday Night
Showers and thunderstorms likely, mainly before 8pm, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 80. Southeast wind 10 to 13 mph. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 86. Southeast wind 13 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 83. Southeast wind 10 to 14 mph.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Southeast wind 13 to 15 mph, with gusts as high as 18 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Breezy.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Key Biscayne FL
 25.69°N 80.17°W
Last Update:
1:32 pm EDT Jul 13, 2025
Forecast Valid:
3pm EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
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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