National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

78°F

26°C

Humidity 69%
Wind Speed N 6 mph
Barometer 29.99 in (1015.3 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 20 Apr 3:53 am EDT
Extended Forecast for

Plantation Key FL

  • Overnight

    Overnight: Mostly cloudy, with a low around 75. North wind around 5 mph.

    Low: 75 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Northeast wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Northeast wind around 15 mph. Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Breezy, with a northeast wind around 20 mph.

    High: 78 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 71. Breezy, with an east wind 15 to 20 mph.

    Low: 71 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers. Mostly cloudy, with a low around 72. Chance of precipitation is 10%.

    Low: 72 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly cloudy, with a high near 77.

    High: 77 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 72. Breezy. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    Showers and
    Breezy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 75. North wind around 5 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Northeast wind 5 to 10 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Northeast wind around 15 mph. Chance of precipitation is 40%.
Tuesday
Mostly sunny, with a high near 78. Breezy, with a northeast wind around 20 mph.
Tuesday Night
Partly cloudy, with a low around 71. Breezy, with an east wind 15 to 20 mph.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 72. Chance of precipitation is 10%.
Thursday
Mostly cloudy, with a high near 77.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 72. Breezy. Chance of precipitation is 20%.
Friday
A slight chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 10%.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 74. Chance of precipitation is 10%.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Plantation Key FL
 24.97°N 80.56°W (Elev. 0 ft)
Last Update:
3:32 am EDT Apr 20, 2026
Forecast Valid:
4am EDT Apr 20, 2026-6pm EDT Apr 26, 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