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

Isaias Expected To Be A Strong Hurricane Approaching The Northern Gulf Coast

Isaias is expected to strengthen and be a strong hurricane when it approaches the northern Gulf Coast on Friday. There is an increasing risk of damaging hurricane-force winds and life-threatening storm surge impacts Friday into Saturday. Isaias will bring heavy rainfall to the northern Gulf Coast and much of the Southeast U.S. Friday into the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

83°F

28°C

Humidity 74%
Wind Speed Calm
Barometer 29.87 in (1011.3 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 7 Oct 8:53 pm EDT
Extended Forecast for

Islamorada FL

  • Tonight

    Tonight: A chance of showers and thunderstorms. Partly cloudy, with a low around 80. South wind around 5 mph. Chance of precipitation is 40%.

    Low: 80 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms. Mostly sunny, with a high near 86. South wind around 5 mph. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 81. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 81 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Southeast wind around 10 mph. Chance of precipitation is 40%.

    High: 86 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 81. East wind 10 to 15 mph. Chance of precipitation is 70%.

    Low: 81 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 50%.

    High: 86 °F

    Chance
    T-storms

  • Saturday Night

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

    Low: 82 °F

    Chance
    T-storms and
    Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 81.

    Low: 81 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms. Partly cloudy, with a low around 80. South wind around 5 mph. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. South wind around 5 mph. Chance of precipitation is 30%.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 81. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Southeast wind around 10 mph. Chance of precipitation is 40%.
Friday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 81. East wind 10 to 15 mph. Chance of precipitation is 70%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 82. Breezy. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 81.
Columbus Day
Sunny, with a high near 86.
Monday Night
A slight chance of showers. Mostly clear, with a low around 80. Chance of precipitation is 10%.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 85. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 79. Chance of precipitation is 20%.
Wednesday
A slight chance of showers and thunderstorms. Sunny, with a high near 84. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Islamorada FL
 24.93°N 80.62°W (Elev. 3 ft)
Last Update:
9:15 pm EDT Oct 7, 2026
Forecast Valid:
9pm EDT Oct 7, 2026-6pm EDT Oct 14, 2026
 
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