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

Critical Fire Weather Conditions in the Southern Plains; Showers and Thunderstorms Linger Over Florida

Gusty winds and dry conditions will promote elevated to critical fire weather conditions across the southern Plains and southern Rockies. A cold front will linger over Florida through Tuesday, bringing widespread showers and thunderstorms, and potential flash flooding concerns. Showers and thunderstorms will be most widespread across eastern and central Florida. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

A Few Clouds

79°F

26°C

Humidity 74%
Wind Speed E 8 mph
Barometer 29.88 in (1011.8 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 6 Apr 5:53 pm EDT
Extended Forecast for

Marathon FL

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 72. East wind around 5 mph. Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 80. East wind around 5 mph becoming calm. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 69. North wind around 5 mph. Chance of precipitation is 50%.

    Low: 69 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 79. East wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. East wind 10 to 15 mph. Chance of precipitation is 50%.

    Low: 70 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers. Mostly sunny, with a high near 80. Chance of precipitation is 10%.

    High: 80 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers. Partly cloudy, with a low around 73. Chance of precipitation is 10%.

    Low: 73 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 72. East wind around 5 mph. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. East wind around 5 mph becoming calm. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. North wind around 5 mph. Chance of precipitation is 50%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79. East wind 5 to 10 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. East wind 10 to 15 mph. Chance of precipitation is 50%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 40%.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 20%.
Friday
A slight chance of showers. Mostly sunny, with a high near 80. Chance of precipitation is 10%.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 73. Chance of precipitation is 10%.
Saturday
A slight chance of showers. Mostly sunny, with a high near 80. Chance of precipitation is 10%.
Saturday Night
Mostly clear, with a low around 73. Breezy.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 73. Windy.
Monday
Mostly sunny, with a high near 80. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marathon FL
 24.72°N 81.07°W (Elev. 7 ft)
Last Update:
6:15 pm EDT Apr 6, 2026
Forecast Valid:
6pm EDT Apr 6, 2026-6pm EDT Apr 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