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 79%
Wind Speed E 12 G 21 mph
Barometer 30.12 in (1019.9 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 17 May 11:53 pm EDT
Extended Forecast for

Key Biscayne FL

  • Overnight

    Overnight: Partly cloudy, with a low around 82. Breezy, with an east wind 18 to 20 mph.

    Low: 82 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly between 11am and 3pm. Mostly sunny, with a high near 84. Breezy, with an east wind around 17 mph, with gusts as high as 22 mph.

    High: 84 °F

    Breezy.
    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms after 11pm. Mostly clear, with a low around 81. Breezy, with an east wind 17 to 20 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 81 °F

    Breezy.
    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly before 2pm. Sunny, with a high near 84. Breezy, with an east wind around 16 mph, with gusts as high as 20 mph.

    High: 84 °F

    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly clear, with a low around 82. Breezy, with an east wind 15 to 17 mph.

    Low: 82 °F

    Chance
    Showers and
    Breezy

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 11am. Sunny, with a high near 84. East wind around 14 mph. Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 81. East wind 10 to 15 mph. Chance of precipitation is 20%.

    Low: 81 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 84. East wind 9 to 11 mph. Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 82. East wind 10 to 15 mph.

    Low: 82 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 82. Breezy, with an east wind 18 to 20 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly between 11am and 3pm. Mostly sunny, with a high near 84. Breezy, with an east wind around 17 mph, with gusts as high as 22 mph.
Monday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms after 11pm. Mostly clear, with a low around 81. Breezy, with an east wind 17 to 20 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly before 2pm. Sunny, with a high near 84. Breezy, with an east wind around 16 mph, with gusts as high as 20 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly clear, with a low around 82. Breezy, with an east wind 15 to 17 mph.
Wednesday
A slight chance of showers, with thunderstorms also possible after 11am. Sunny, with a high near 84. East wind around 14 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 81. East wind 10 to 15 mph. Chance of precipitation is 20%.
Thursday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 84. East wind 9 to 11 mph. Chance of precipitation is 20%.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 82. East wind 10 to 15 mph.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83. Breezy.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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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:
4:47 pm EDT May 17, 2026
Forecast Valid:
1am EDT May 18, 2026-6pm EDT May 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation