Unsettled Weather in the West; Marine and Coastal Impacts Along the East Coast

A series of Pacific fronts will bring periodic waves of showers and thunderstorms to parts of the Great Basin and Pacific Northwest the next few days. Swells, high surf, dangerous rip currents and areas of coastal flooding continue along much of the East Coast from both Humberto and Imelda. Unseasonably hot temperatures continue for much of the Plains and Midwest through the remainder of the week. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

79°F

26°C

Humidity 88%
Wind Speed Calm
Barometer 29.93 in (1013.3 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 2 Oct 1:53 am EDT
Extended Forecast for

Marathon FL

  • Overnight

    Overnight: A slight chance of showers and thunderstorms.  Mostly clear, with a low around 78. Northeast wind around 5 mph.  Chance of precipitation is 10%.

    Low: 78 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly after 8am.  Sunny, with a high near 87. Northeast wind around 5 mph.  Chance of precipitation is 30%.

    High: 87 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 77. Northeast wind around 10 mph.  Chance of precipitation is 30%.

    Low: 77 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms.  Mostly sunny, with a high near 85. Northeast wind around 15 mph.  Chance of precipitation is 40%.

    High: 85 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 77. Northeast wind around 15 mph.  Chance of precipitation is 40%.

    Low: 77 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms.  Mostly sunny, with a high near 87. Chance of precipitation is 40%.

    High: 87 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 79. Chance of precipitation is 50%.

    Low: 79 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms.  Partly sunny, with a high near 87. Chance of precipitation is 50%.

    High: 87 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 79. Chance of precipitation is 40%.

    Low: 79 °F

    Chance
    Showers

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms. Mostly clear, with a low around 78. Northeast wind around 5 mph. Chance of precipitation is 10%.
Thursday
A chance of showers and thunderstorms, mainly after 8am. Sunny, with a high near 87. Northeast wind around 5 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Northeast wind around 10 mph. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Northeast wind around 15 mph. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Northeast wind around 15 mph. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 79. Chance of precipitation is 50%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 79. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 79. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Breezy. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 79. Breezy. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Marathon FL
 24.72°N 81.07°W (Elev. 7 ft)
1:36 am EDT Oct 2, 2025
2am EDT Oct 2, 2025-6pm EDT Oct 8, 2025
 
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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