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.

A Few Clouds

82°F

28°C

Humidity 72%
Wind Speed N 3 mph
Barometer 29.99 in (1015.5 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 30 Jun 11:53 pm EDT
Extended Forecast for

Key Biscayne FL

  • Overnight

    Overnight: Partly cloudy, with a low around 83. Northeast wind 3 to 5 mph.

    Low: 83 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88. Heat index values as high as 101. Light and variable wind becoming east 5 to 9 mph in the afternoon.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 82. South wind around 6 mph becoming west in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 82 °F

    T-storms
    Likely then
    Mostly Clear

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88. Heat index values as high as 103. Southeast wind 6 to 10 mph.

    High: 88 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 84. East wind around 9 mph. Chance of precipitation is 30%.

    Low: 84 °F

    Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 88. Southeast wind 7 to 10 mph.

    High: 88 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83. Southeast wind 8 to 10 mph.

    Low: 83 °F

    Chance
    T-storms

  • Independence Day

    Independence Day: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southeast wind 7 to 10 mph.

    High: 88 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 83. Southeast wind around 10 mph.

    Low: 83 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 83. Northeast wind 3 to 5 mph.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88. Heat index values as high as 101. Light and variable wind becoming east 5 to 9 mph in the afternoon.
Wednesday Night
Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 82. South wind around 6 mph becoming west in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88. Heat index values as high as 103. Southeast wind 6 to 10 mph.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 84. East wind around 9 mph. Chance of precipitation is 30%.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 88. Southeast wind 7 to 10 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83. Southeast wind 8 to 10 mph.
Independence Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southeast wind 7 to 10 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 83. Southeast wind around 10 mph.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 84.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 84.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 89.
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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:
5:12 pm EDT Jun 30, 2026
Forecast Valid:
12am EDT Jul 1, 2026-6pm EDT Jul 7, 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