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

Hazardous Weather Conditions

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Overcast

79°F

26°C

Humidity 74%
Wind Speed Calm
Barometer 29.92 in (1013.0 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 8 Apr 5:53 pm EDT
Extended Forecast for

Marathon Shores FL

  • Tonight

    Tonight: A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Northeast wind around 5 mph. Chance of precipitation is 50%.

    Low: 71 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms. Mostly sunny, with a high near 81. Northeast wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 73. Northeast wind around 15 mph. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers. Mostly sunny, with a high near 81. East wind around 15 mph. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers. Partly cloudy, with a low around 73. Northeast wind around 15 mph. Chance of precipitation is 10%.

    Low: 73 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers. Mostly sunny, with a high near 81. Chance of precipitation is 10%.

    High: 81 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 74. Breezy.

    Low: 74 °F

    Partly Cloudy
    and Breezy

Detailed Forecast

Tonight
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Northeast wind around 5 mph. Chance of precipitation is 50%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81. Northeast wind 5 to 10 mph. Chance of precipitation is 30%.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 73. Northeast wind around 15 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers. Mostly sunny, with a high near 81. East wind around 15 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 73. Northeast wind around 15 mph. Chance of precipitation is 10%.
Saturday
A slight chance of showers. Mostly sunny, with a high near 81. Chance of precipitation is 10%.
Saturday Night
Partly cloudy, with a low around 73.
Sunday
Sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 74. Breezy.
Monday
Sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 74.
Wednesday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marathon Shores FL
 24.72°N 81.05°W (Elev. 0 ft)
Last Update:
6:15 pm EDT Apr 8, 2026
Forecast Valid:
6pm EDT Apr 8, 2026-6pm EDT Apr 15, 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