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.

A Few Clouds

80°F

27°C

Humidity 90%
Wind Speed Calm
Barometer 30.02 in (1016.7 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 4 Jul 5:53 am EDT
Extended Forecast for

Key Biscayne FL

Heat Advisory July 4, 11:00am until July 4, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Independence Day

    Independence Day: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 88. Heat index values as high as 101. Southeast wind 7 to 9 mph.

    High: 88 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 83. Southeast wind 7 to 10 mph.

    Low: 83 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly between 4pm and 5pm. Mostly sunny, with a high near 88. Heat index values as high as 101. South wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    T-storms
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 84. Southeast wind around 10 mph.

    Low: 84 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 88. Southeast wind 6 to 10 mph. Chance of precipitation is 60%.

    High: 88 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 84. Southeast wind 7 to 9 mph. Chance of precipitation is 60%.

    Low: 84 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Light southeast wind increasing to 5 to 10 mph in the morning.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 84. Southeast wind 6 to 9 mph.

    Low: 84 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 89. Southeast wind 6 to 11 mph.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Independence Day
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 88. Heat index values as high as 101. Southeast wind 7 to 9 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 83. Southeast wind 7 to 10 mph.
Sunday
Showers and thunderstorms likely, mainly between 4pm and 5pm. Mostly sunny, with a high near 88. Heat index values as high as 101. South wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 84. Southeast wind around 10 mph.
Monday
Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 88. Southeast wind 6 to 10 mph. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 84. Southeast wind 7 to 9 mph. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Light southeast wind increasing to 5 to 10 mph in the morning.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 84. Southeast wind 6 to 9 mph.
Wednesday
Mostly sunny, with a high near 89. Southeast wind 6 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 85.
Thursday
Sunny, with a high near 89.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 85.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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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:
4:17 am EDT Jul 4, 2026
Forecast Valid:
6am EDT Jul 4, 2026-6pm EDT Jul 10, 2026
 
Forecast Discussion
 
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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