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.

Partly Cloudy

82°F

28°C

Humidity 82%
Wind Speed E 6 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 5 Oct 4:53 am EDT
Extended Forecast for

Key Biscayne FL

  • Today

    Today: Mostly sunny, with a high near 87. Southeast wind around 9 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 80. Southeast wind around 6 mph becoming southwest after midnight.

    Low: 80 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 10 percent chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 87. South wind 5 to 8 mph.

    High: 87 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 79. Southwest wind around 6 mph. Chance of precipitation is 30%.

    Low: 79 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 87. Southwest wind around 8 mph. Chance of precipitation is 70%.

    High: 87 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 79. Southwest wind around 6 mph. Chance of precipitation is 60%.

    Low: 79 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 86. South wind 5 to 7 mph. Chance of precipitation is 70%.

    High: 86 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 79. Southeast wind around 6 mph. Chance of precipitation is 60%.

    Low: 79 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 87. Southeast wind 7 to 9 mph.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 87. Southeast wind around 9 mph.
Tonight
Mostly cloudy, with a low around 80. Southeast wind around 6 mph becoming southwest after midnight.
Tuesday
A 10 percent chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 87. South wind 5 to 8 mph.
Tuesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 79. Southwest wind around 6 mph. Chance of precipitation is 30%.
Wednesday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 87. Southwest wind around 8 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 79. Southwest wind around 6 mph. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 86. South wind 5 to 7 mph. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 79. Southeast wind around 6 mph. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 87. Southeast wind 7 to 9 mph.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 81.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 81. Breezy.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Key Biscayne FL
 25.66°N 80.15°W
Last Update:
4:47 am EDT Oct 5, 2026
Forecast Valid:
5am EDT Oct 5, 2026-6pm EDT Oct 11, 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