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

29°C

84°F

Humidity 77%
Wind Speed S 22 G 43 km/h
Barometer 1013.4 mb (29.93 in)
Dewpoint 24°C (76°F)
Visibility 16 km
Heat Index34°C (93°F)
Last update 14 May 9:53 am EDT
Extended Forecast for

Marathon FL

  • Today

    Today: Sunny, with a high near 33. South wind 20 to 25 km/h decreasing to 15 to 20 km/h in the afternoon.

    High: 33 °C

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 27. East wind 15 to 25 km/h.

    Low: 27 °C

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 33. South wind 15 to 20 km/h. Chance of precipitation is 10%.

    High: 33 °C

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 27. Northwest wind 5 to 15 km/h becoming south after midnight. Chance of precipitation is 20%.

    Low: 27 °C

    Slight Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 33. Southwest wind around 10 km/h. Chance of precipitation is 10%.

    High: 33 °C

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 28. Chance of precipitation is 10%.

    Low: 28 °C

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms. Sunny, with a high near 33. Chance of precipitation is 10%.

    High: 33 °C

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 28. Chance of precipitation is 10%.

    Low: 28 °C

    Slight Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms. Sunny, with a high near 33. Chance of precipitation is 10%.

    High: 33 °C

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 33. South wind 20 to 25 km/h decreasing to 15 to 20 km/h in the afternoon.
Tonight
Partly cloudy, with a low around 27. East wind 15 to 25 km/h.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 33. South wind 15 to 20 km/h. Chance of precipitation is 10%.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 27. Northwest wind 5 to 15 km/h becoming south after midnight. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 33. Southwest wind around 10 km/h. Chance of precipitation is 10%.
Thursday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 28. Chance of precipitation is 10%.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 33. Chance of precipitation is 10%.
Friday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 28. Chance of precipitation is 10%.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 33. Chance of precipitation is 10%.
Saturday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 27. Chance of precipitation is 10%.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 33. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 28. Chance of precipitation is 20%.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 32. Chance of precipitation is 20%.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Marathon FL
 24.72°N 81.07°W (Elev. 7 m)
Last Update:
9:15 am EDT May 14, 2024
Forecast Valid:
10am EDT May 14, 2024-6pm EDT May 20, 2024
 
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