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.

A Few Clouds

88°F

31°C

Humidity 68%
Wind Speed SE 9 mph
Barometer 30.14 in (1020.5 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 1 Aug 9:53 am EDT
Extended Forecast for

Marathon Shores FL

  • Today

    Today: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. East wind around 5 mph. Chance of precipitation is 10%.

    High: 91 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms. Mostly clear, with a low around 83. East wind 5 to 10 mph. Chance of precipitation is 10%.

    Low: 83 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms. Sunny, with a high near 91. East wind around 5 mph. Chance of precipitation is 10%.

    High: 91 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 83. East wind around 5 mph. Chance of precipitation is 10%.

    Low: 83 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms. Sunny, with a high near 90. East wind around 5 mph. Chance of precipitation is 10%.

    High: 90 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 83. Chance of precipitation is 20%.

    Low: 83 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A slight chance of showers and thunderstorms. Sunny, with a high near 91. Chance of precipitation is 20%.

    High: 91 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 83. Chance of precipitation is 30%.

    Low: 83 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    Showers

Detailed Forecast

Today
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. East wind around 5 mph. Chance of precipitation is 10%.
Tonight
A slight chance of showers and thunderstorms. Mostly clear, with a low around 83. East wind 5 to 10 mph. Chance of precipitation is 10%.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 91. East wind around 5 mph. Chance of precipitation is 10%.
Saturday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 83. East wind around 5 mph. Chance of precipitation is 10%.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 90. East wind around 5 mph. Chance of precipitation is 10%.
Sunday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 83. Chance of precipitation is 20%.
Monday
A slight chance of showers and thunderstorms. Sunny, with a high near 91. Chance of precipitation is 20%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 83. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 82. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marathon Shores FL
 24.72°N 81.05°W (Elev. 0 ft)
Last Update:
10:15 am EDT Aug 1, 2025
Forecast Valid:
10am EDT Aug 1, 2025-6pm EDT Aug 7, 2025
 
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