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

Storms in the East; Monsoons and Fire Weather Out West

A slow moving frontal system will bring strong to severe storms, and, locally heavy rain from the Plains to the Northeast. Monsoon moisture shifts to the east into portions of the southern Plains and may produce excessive rains across portions of the High Plains and desert southwest. Fire Weather threats remain elevated to critical with isolated dry thunderstorms in the Intermountain West. Read More >

Hazardous Weather Conditions

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 0ft.

A Few Clouds

83°F

28°C

Humidity 79%
Wind Speed E 7 mph
Barometer 30.13 in (1020.4 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 17 Aug 2:53 am EDT
Extended Forecast for

Marathon FLSimilar City Names

  • Overnight

    Overnight: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 83. East wind around 15 mph. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 83 °F

  • Friday

    Friday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 92. East wind 10 to 15 mph. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    High: 92 °F

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 83. East wind 10 to 15 mph. Chance of precipitation is 30%.

    Slight Chance
    T-storms then
    Chance
    Showers

    Low: 83 °F

  • Saturday

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

    Chance
    Showers

    High: 92 °F

  • Saturday
    Night

    Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 82. East wind around 10 mph. Chance of precipitation is 30%.

    Chance
    Showers

    Low: 82 °F

  • Sunday

    Sunday: A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.

    Chance
    Showers

    High: 91 °F

  • Sunday
    Night

    Sunday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 82. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 82 °F

  • Monday

    Monday: A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.

    Chance
    Showers

    High: 91 °F

  • Monday
    Night

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

    Chance
    Showers

    Low: 82 °F

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 83. East wind around 15 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 92. East wind 10 to 15 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 83. East wind 10 to 15 mph. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 92. East wind around 10 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 82. East wind around 10 mph. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 82. Chance of precipitation is 20%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 82. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 82. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 82. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Marathon FLSimilar City Names
 24.72°N 81.07°W (Elev. 7 ft)
Last Update:
3:15 am EDT Aug 17, 2018
Forecast Valid:
3am EDT Aug 17, 2018-6pm EDT Aug 23, 2018
 
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