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.

Fair

86°F

30°C

Humidity 67%
Wind Speed E 12 G 21 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 17 Jun 10:53 am EDT
Extended Forecast for

Marathon FLSimilar City Names

  • Today

    Today: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind around 10 mph. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Tonight

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

    Low: 81 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind around 10 mph. Chance of precipitation is 20%.

    High: 88 °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

  • Juneteenth

    Juneteenth: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind around 10 mph. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 20%.

    Low: 81 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 30%.

    Low: 81 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers

Detailed Forecast

Today
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind around 10 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 81. Southeast wind 10 to 15 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind around 10 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%.
Juneteenth
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind around 10 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Marathon FLSimilar City Names
 24.72°N 81.07°W (Elev. 7 ft)
Last Update:
11:15 am EDT Jun 17, 2025
Forecast Valid:
11am EDT Jun 17, 2025-6pm EDT Jun 23, 2025
 
Forecast Discussion
 
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