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.

A Few Clouds

81°F

27°C

Humidity 69%
Wind Speed E 17 G 26 mph
Barometer 30.00 in (1015.7 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 9 Apr 5:53 pm EDT
Extended Forecast for

Marathon Shores FL

  • Tonight

    Tonight: A chance of showers. Mostly cloudy, with a low around 74. Breezy, with a northeast wind 15 to 20 mph. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    Showers and
    Breezy

  • Friday

    Friday: A chance of showers. Mostly sunny, with a high near 81. Northeast wind around 15 mph. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers. Partly cloudy, with a low around 73. Breezy, with a northeast wind 15 to 20 mph. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    Showers and
    Breezy

  • Saturday

    Saturday: A slight chance of showers. Mostly sunny, with a high near 81. Northeast wind around 15 mph. Chance of precipitation is 10%.

    High: 81 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72. Breezy, with an east wind 15 to 20 mph.

    Low: 72 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Sunday

    Sunday: Sunny, with a high near 81. Breezy.

    High: 81 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. Breezy.

    Low: 72 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Monday Night

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

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers. Mostly cloudy, with a low around 74. Breezy, with a northeast wind 15 to 20 mph. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly sunny, with a high near 81. Northeast wind around 15 mph. Chance of precipitation is 30%.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 73. Breezy, with a northeast wind 15 to 20 mph. Chance of precipitation is 20%.
Saturday
A slight chance of showers. Mostly sunny, with a high near 81. Northeast wind around 15 mph. Chance of precipitation is 10%.
Saturday Night
Mostly clear, with a low around 72. Breezy, with an east wind 15 to 20 mph.
Sunday
Sunny, with a high near 81. Breezy.
Sunday Night
Mostly clear, with a low around 72. Breezy.
Monday
Sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 74.
Thursday
Mostly sunny, with a high near 82.
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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:
5:15 pm EDT Apr 9, 2026
Forecast Valid:
6pm EDT Apr 9, 2026-6pm EDT Apr 16, 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