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

Heavy Rain For Carolinas and Virginia; Severe In Texas; Heat Out West

An area of low pressure and a batch of tropical moisture will surge into parts of the Carolinas and Virginia. Heavy rain, strong thunderstorms and flooding is likely, regardless of any tropical development. Severe thunderstorms with all hazards are likely in central Texas, especially near Austin and San Antonio. Finally, the sweltering heat wave will continue the rest of the week across the West. Read More >

Hazardous Weather Conditions

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

A Few Clouds

82°F

28°C

Humidity 85%
Wind Speed S 8 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 27 May 5:53 am EDT
Extended Forecast for

Marathon FL

  • Today

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

    Slight Chance
    T-storms

    High: 91 °F

  • Tonight

    Tonight: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 80. East wind around 5 mph. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 80 °F

  • Thursday

    Thursday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. East wind 5 to 10 mph. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    High: 90 °F

  • Thursday
    Night

    Thursday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 79. East wind 10 to 15 mph. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 79 °F

  • Friday

    Friday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. East wind 10 to 15 mph. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    High: 90 °F

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a low around 78. Chance of precipitation is 30%.

    Chance
    Showers

    Low: 78 °F

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 90. Chance of precipitation is 30%.

    Chance
    Showers then
    Slight Chance
    T-storms

    High: 90 °F

  • Saturday
    Night

    Saturday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 78. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 78 °F

  • Sunday

    Sunday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    High: 90 °F

Detailed Forecast

Today
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. South wind 5 to 10 mph. Chance of precipitation is 10%.
Tonight
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 80. East wind around 5 mph. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. East wind 5 to 10 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 79. East wind 10 to 15 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. East wind 10 to 15 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a low around 78. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 90. Chance of precipitation is 30%.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 78. Chance of precipitation is 20%.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 78. Chance of precipitation is 20%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Marathon FL
 24.72°N 81.07°W (Elev. 7 ft)
Last Update:
5:15 am EDT May 27, 2020
Forecast Valid:
6am EDT May 27, 2020-6pm EDT Jun 2, 2020
 
Forecast Discussion
 
Get as KML Get as XML

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