National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Miami, Miami International Airport (KMIA)

Lat: 25.79°NLon: 80.32°WElev: 10ft.

Mostly Cloudy

84°F

29°C

Humidity 80%
Wind Speed S 3 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 12 Jul 8:53 pm EDT
Extended Forecast for

Key Biscayne FL

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 79. Southeast wind around 7 mph. Chance of precipitation is 20%.

    Low: 79 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 9am. Mostly sunny, with a high near 88. Heat index values as high as 100. Northeast wind 5 to 8 mph becoming calm in the afternoon.

    High: 88 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 78. Southwest wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 78 °F

    T-storms
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 8am, then showers and thunderstorms likely between 8am and 5pm, then showers and possibly a thunderstorm after 5pm. High near 86. Southwest wind 6 to 8 mph. Chance of precipitation is 80%.

    High: 86 °F

    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Low around 77. Southwest wind 6 to 8 mph. Chance of precipitation is 80%.

    Low: 77 °F

    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 11am, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 85. South wind 8 to 13 mph. Chance of precipitation is 70%.

    High: 85 °F

    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 80. Southeast wind 10 to 14 mph, with gusts as high as 18 mph.

    Low: 80 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely. Partly sunny, with a high near 85. Breezy, with a southeast wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    High: 85 °F

    T-storms
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 82. Breezy, with a southeast wind 13 to 16 mph, with gusts as high as 21 mph.

    Low: 82 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 79. Southeast wind around 7 mph. Chance of precipitation is 20%.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 9am. Mostly sunny, with a high near 88. Heat index values as high as 100. Northeast wind 5 to 8 mph becoming calm in the afternoon.
Sunday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 78. Southwest wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers likely and possibly a thunderstorm before 8am, then showers and thunderstorms likely between 8am and 5pm, then showers and possibly a thunderstorm after 5pm. High near 86. Southwest wind 6 to 8 mph. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Low around 77. Southwest wind 6 to 8 mph. Chance of precipitation is 80%.
Tuesday
Showers likely and possibly a thunderstorm before 11am, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 85. South wind 8 to 13 mph. Chance of precipitation is 70%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 80. Southeast wind 10 to 14 mph, with gusts as high as 18 mph.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 85. Breezy, with a southeast wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 82. Breezy, with a southeast wind 13 to 16 mph, with gusts as high as 21 mph.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Breezy.
Thursday Night
A 30 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.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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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:
2:47 pm EDT Jul 12, 2025
Forecast Valid:
9pm EDT Jul 12, 2025-6pm EDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation