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.

Overcast

85°F

29°C

Humidity 82%
Wind Speed E 6 mph
Barometer 30.12 in (1019.8 mb)
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 12 Jul 2:53 am EDT
Extended Forecast for

Key Biscayne FL

Heat Advisory July 12, 11:00am until July 12, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Partly cloudy, with a low around 85. East wind around 10 mph.

    Low: 85 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 90. Heat index values as high as 105. East wind 8 to 10 mph.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 85. East wind 11 to 13 mph.

    Low: 85 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 90. Heat index values as high as 103. Southeast wind 8 to 10 mph.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 84. Southeast wind 8 to 10 mph.

    Low: 84 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Southeast wind 6 to 11 mph.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 85. East wind around 10 mph.

    Low: 85 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 90. East wind 9 to 11 mph.

    High: 90 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 84. East wind 8 to 10 mph.

    Low: 84 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 85. East wind around 10 mph.
Sunday
Mostly sunny, with a high near 90. Heat index values as high as 105. East wind 8 to 10 mph.
Sunday Night
Mostly clear, with a low around 85. East wind 11 to 13 mph.
Monday
Sunny, with a high near 90. Heat index values as high as 103. Southeast wind 8 to 10 mph.
Monday Night
Mostly clear, with a low around 84. Southeast wind 8 to 10 mph.
Tuesday
Sunny, with a high near 90. Southeast wind 6 to 11 mph.
Tuesday Night
Mostly clear, with a low around 85. East wind around 10 mph.
Wednesday
Mostly sunny, with a high near 90. East wind 9 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 84. East wind 8 to 10 mph.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 84.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 84.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Key Biscayne FL
 25.69°N 80.17°W
Last Update:
2:31 am EDT Jul 12, 2026
Forecast Valid:
3am EDT Jul 12, 2026-6pm EDT Jul 18, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation