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

Hazardous Weather Conditions

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

89°F

32°C

Humidity 68%
Wind Speed SE 8 mph
Barometer 30.00 in (1015.9 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 22 Jul 1:53 pm EDT
Extended Forecast for

Islamorada FL

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southeast wind around 10 mph. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms. Mostly clear, with a low around 83. East wind around 10 mph. Chance of precipitation is 10%.

    Low: 83 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers and thunderstorms. Sunny, with a high near 88. East wind around 10 mph. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 82. Northeast wind around 10 mph. Chance of precipitation is 50%.

    Low: 82 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind around 5 mph. Chance of precipitation is 40%.

    High: 88 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 83. Chance of precipitation is 20%.

    Low: 83 °F

    Slight Chance
    T-storms

  • Saturday

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

    High: 88 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 83.

    Low: 83 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers. Sunny, with a high near 88. Chance of precipitation is 10%.

    High: 88 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southeast wind around 10 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers and thunderstorms. Mostly clear, with a low around 83. East wind around 10 mph. Chance of precipitation is 10%.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 88. East wind around 10 mph. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 82. Northeast wind around 10 mph. Chance of precipitation is 50%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind around 5 mph. Chance of precipitation is 40%.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 83. Chance of precipitation is 20%.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 88. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 83.
Sunday
A slight chance of showers. Sunny, with a high near 88. Chance of precipitation is 10%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 83. Chance of precipitation is 30%.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 83. Chance of precipitation is 30%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 87. Chance of precipitation is 10%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Islamorada FL
 24.93°N 80.64°W (Elev. 0 ft)
Last Update:
2:15 pm EDT Jul 22, 2026
Forecast Valid:
2pm EDT Jul 22, 2026-6pm EDT Jul 28, 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