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

81°F

27°C

Humidity 82%
Wind Speed Calm
Barometer 30.13 in (1020.2 mb)
Dewpoint 75°F (24°C)
Visibility 8.00 mi
Heat Index87°F (31°C)
Last update 24 Jun 12:53 am EDT
Extended Forecast for

Key Biscayne FL

  • Overnight

    Overnight: Partly cloudy, with a low around 83. South wind around 5 mph.

    Low: 83 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Heat index values as high as 100. Light south wind becoming southeast 5 to 9 mph in the afternoon.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 83. Southeast wind 7 to 9 mph becoming west in the evening. Chance of precipitation is 20%.

    Low: 83 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 10 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 88. Heat index values as high as 100. Southeast wind 7 to 9 mph.

    High: 88 °F

    Slight Chance
    T-storms then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 84. Southeast wind around 11 mph.

    Low: 84 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Southeast wind around 11 mph.

    High: 89 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 84. East wind 11 to 14 mph.

    Low: 84 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 88. East wind around 10 mph.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 83. East wind 10 to 13 mph.

    Low: 83 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 83. South wind around 5 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Heat index values as high as 100. Light south wind becoming southeast 5 to 9 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 83. Southeast wind 7 to 9 mph becoming west in the evening. Chance of precipitation is 20%.
Thursday
A 10 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 88. Heat index values as high as 100. Southeast wind 7 to 9 mph.
Thursday Night
Mostly clear, with a low around 84. Southeast wind around 11 mph.
Friday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Southeast wind around 11 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 84. East wind 11 to 14 mph.
Saturday
Sunny, with a high near 88. East wind around 10 mph.
Saturday Night
Mostly clear, with a low around 83. East wind 10 to 13 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 83.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 88.
Monday Night
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 83.
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:
4:16 pm EDT Jun 23, 2026
Forecast Valid:
1am EDT Jun 24, 2026-6pm EDT Jun 30, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation