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

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

84°F

29°C

Humidity 70%
Wind Speed Vrbl 3 mph
Barometer 29.89 in (1012.0 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 7 Nov 1:53 pm EST
Extended Forecast for

25 Miles NW Islamorada FL

  • This Afternoon

    This Afternoon: Sunny, with a high near 86. Light and variable wind.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 72. Light north wind.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 85. Northeast wind around 6 mph becoming calm in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 85. Light and variable wind becoming northeast around 5 mph in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 72. Northeast wind 3 to 5 mph.

    Low: 72 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. East wind 6 to 8 mph.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 73. East wind 5 to 8 mph.

    Low: 73 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 82. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 86. Light and variable wind.
Tonight
Partly cloudy, with a low around 72. Light north wind.
Sunday
Mostly sunny, with a high near 85. Northeast wind around 6 mph becoming calm in the afternoon.
Sunday Night
Partly cloudy, with a low around 72. Calm wind.
Monday
Mostly sunny, with a high near 85. Light and variable wind becoming northeast around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 72. Northeast wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 84. East wind 6 to 8 mph.
Tuesday Night
Mostly cloudy, with a low around 73. East wind 5 to 8 mph.
Veterans Day
Mostly sunny, with a high near 82. Northeast wind around 5 mph becoming southeast in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 73.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 81.
Thursday Night
A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 73.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
25 Miles NW Islamorada FL
 25.19°N 80.92°W
Last Update:
1:31 pm EST Nov 7, 2026
Forecast Valid:
1pm EST Nov 7, 2026-6pm EST Nov 13, 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