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

Widespread Summer Heat; Enhanced Severe Weather

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, south-central Plains, Mid to Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, an enhanced risk of organized severe thunderstorms is possible from Iowa to Illinois and Indiana. Read More >

Hazardous Weather Conditions

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Mostly Cloudy

90°F

32°C

Humidity 59%
Wind Speed E 8 mph
Barometer 30.06 in (1017.9 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 20 Aug 1:53 pm EDT
Extended Forecast for

Marathon Shores FL

  • This
    Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 91. East wind around 10 mph. Chance of precipitation is 70%.

    Showers
    Likely

    High: 91 °F

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 81. East wind around 10 mph. Chance of precipitation is 60%.

    Showers
    Likely

    Low: 81 °F

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Partly sunny, with a high near 92. East wind around 10 mph. Chance of precipitation is 50%.

    Chance
    Showers

    High: 92 °F

  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 84. East wind 5 to 10 mph. Chance of precipitation is 40%.

    Chance
    Showers

    Low: 84 °F

  • Thursday

    Thursday: A chance of showers and thunderstorms. Partly sunny, with a high near 92. East wind 5 to 10 mph. Chance of precipitation is 30%.

    Chance
    Showers

    High: 92 °F

  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 83. Chance of precipitation is 40%.

    Chance
    Showers

    Low: 83 °F

  • Friday

    Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 50%.

    Chance
    Showers

    High: 92 °F

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 82. Chance of precipitation is 30%.

    Chance
    Showers

    Low: 82 °F

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 30%.

    Chance
    Showers

    High: 92 °F

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 91. East wind around 10 mph. Chance of precipitation is 70%.
Tonight
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 81. East wind around 10 mph. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 92. East wind around 10 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 84. East wind 5 to 10 mph. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 92. East wind 5 to 10 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 83. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 82. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 82. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 82. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Marathon Shores FL
 24.72°N 81.05°W (Elev. 0 ft)
Last Update:
2:15 pm EDT Aug 20, 2019
Forecast Valid:
2pm EDT Aug 20, 2019-6pm EDT Aug 26, 2019
 
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