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

Hurricane Isaias Approaching the Gulf Coast; Remnants of Rachel to Impact the Southwest U.S.

Hurricane Isaias is expected to make landfall along the U.S. northern Gulf Coast late Friday or early Saturday. A life-threatening storm surge is expected along the coast with damaging wind gusts extending well inland. Areas of heavy rainfall are forecast throughout much of the Southeast U.S. The remnants of Rachel will bring gusty winds and heavy rainfall to the Southwest U.S. this weekend. 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

84°F

29°C

Humidity 80%
Wind Speed SE 8 mph
Barometer 29.91 in (1012.7 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 8 Oct 11:53 pm EDT
Extended Forecast for

Marathon FLSimilar City Names

  • Overnight

    Overnight: Partly cloudy, with a low around 81. Southeast wind around 10 mph.

    Low: 81 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southeast wind around 10 mph. Chance of precipitation is 40%.

    High: 88 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 80. Southeast wind around 10 mph. Chance of precipitation is 70%.

    Low: 80 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southeast wind around 10 mph. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Southeast wind around 10 mph. Chance of precipitation is 40%.

    Low: 81 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 80.

    Low: 80 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 79. Chance of precipitation is 20%.

    Low: 79 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 81. Southeast wind around 10 mph.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southeast wind around 10 mph. Chance of precipitation is 40%.
Friday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 80. Southeast wind around 10 mph. Chance of precipitation is 70%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southeast wind around 10 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Southeast wind around 10 mph. Chance of precipitation is 40%.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 80.
Columbus Day
Sunny, with a high near 88.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 79. Chance of precipitation is 20%.
Tuesday
A slight chance of showers. Sunny, with a high near 87. Chance of precipitation is 10%.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 78. Chance of precipitation is 20%.
Wednesday
A slight chance of showers. Sunny, with a high near 86. Chance of precipitation is 10%.
Wednesday Night
A slight chance of showers. Mostly clear, with a low around 79. Chance of precipitation is 10%.
Thursday
A slight chance of showers. Sunny, with a high near 86. Chance of precipitation is 20%.
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Forecast Area
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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 pm EDT Oct 8, 2026
Forecast Valid:
12am EDT Oct 9, 2026-6pm EDT Oct 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation