Current conditions at

Miami, Miami International Airport (KMIA)

Lat: 25.79°NLon: 80.32°WElev: 10ft.

Light Rain

81°F

27°C

Humidity 82%
Wind Speed E 8 mph
Barometer 30.05 in (1017.5 mb)
Dewpoint 75°F (24°C)
Visibility 8.00 mi
Heat Index87°F (31°C)
Last update 30 Sep 12:53 pm EDT
Extended Forecast for

Key Biscayne FL

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 85. East wind around 11 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 2am, then showers likely and possibly a thunderstorm after 3am.  Mostly cloudy, with a low around 80. Breezy, with an east wind 14 to 18 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 80 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 5pm, then a chance of showers and thunderstorms after 5pm.  Partly sunny, with a high near 87. Windy, with an east wind 18 to 21 mph, with gusts as high as 24 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    T-storms and
    Windy then
    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 8pm, then showers likely and possibly a thunderstorm after 8pm.  Mostly cloudy, with a low around 81. Breezy, with an east wind 18 to 20 mph.  Chance of precipitation is 60%.

    Low: 81 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 87. Breezy, with an east wind 15 to 18 mph, with gusts as high as 21 mph.

    High: 87 °F

    Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 81. Breezy, with an east wind around 17 mph.

    Low: 81 °F

    Chance
    T-storms and
    Breezy

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 87. Breezy, with an east wind around 16 mph, with gusts as high as 20 mph.

    High: 87 °F

    Chance
    T-storms and
    Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 81. Breezy, with an east wind around 16 mph.

    Low: 81 °F

    Slight Chance
    T-storms and
    Breezy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny, with a high near 87. East wind around 14 mph.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85. East wind around 11 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly before 2am, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 80. Breezy, with an east wind 14 to 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 87. Windy, with an east wind 18 to 21 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 8pm, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 81. Breezy, with an east wind 18 to 20 mph. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Breezy, with an east wind 15 to 18 mph, with gusts as high as 21 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 81. Breezy, with an east wind around 17 mph.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Breezy, with an east wind around 16 mph, with gusts as high as 20 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 81. Breezy, with an east wind around 16 mph.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 87. East wind around 14 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 80.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79.
Tuesday
Showers and thunderstorms likely. Mostly sunny, with a high near 87. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Key Biscayne FL
 25.69°N 80.17°W
6:32 am EDT Sep 30, 2026
1pm EDT Sep 30, 2026-6pm EDT Oct 6, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database