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

Winter Weather Brings Dangerous Travel Conditions Across the Northern U.S.

Heavy lake effect snow will persist downwind of the Great Lakes through early Saturday. Snow squalls with heavy snow and gusty winds will create dangerous travel in the Interior Northeast due to low visibility and slippery roads. A major winter storm will bring moderate to heavy, accumulating snow and gusty winds from the eastern Plains to the western Great Lakes today through Saturday. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Overcast

71°F

22°C

Humidity 66%
Wind Speed N 10 G 24 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 28 Nov 1:53 pm EST
Extended Forecast for

Marathon Shores FL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 72. Breezy, with a north wind around 20 mph.

    High: 72 °F

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 69. Breezy, with a northeast wind around 20 mph.

    Low: 69 °F

    Decreasing
    Clouds and
    Breezy

  • Saturday

    Saturday: A chance of showers. Mostly sunny, with a high near 76. Breezy, with an east wind around 20 mph. Chance of precipitation is 30%.

    High: 76 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A chance of showers. Partly cloudy, with a low around 73. Breezy, with an east wind 15 to 20 mph. Chance of precipitation is 40%.

    Low: 73 °F

    Chance
    Showers and
    Breezy

  • Sunday

    Sunday: A chance of showers. Sunny, with a high near 81. East wind around 15 mph. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers. Mostly clear, with a low around 74. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers. Sunny, with a high near 81. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers. Mostly clear, with a low around 75. Chance of precipitation is 10%.

    Low: 75 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers. Sunny, with a high near 82. Chance of precipitation is 10%.

    High: 82 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 72. Breezy, with a north wind around 20 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 69. Breezy, with a northeast wind around 20 mph.
Saturday
A chance of showers. Mostly sunny, with a high near 76. Breezy, with an east wind around 20 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Partly cloudy, with a low around 73. Breezy, with an east wind 15 to 20 mph. Chance of precipitation is 40%.
Sunday
A chance of showers. Sunny, with a high near 81. East wind around 15 mph. Chance of precipitation is 30%.
Sunday Night
A slight chance of showers. Mostly clear, with a low around 74. Chance of precipitation is 20%.
Monday
A slight chance of showers. Sunny, with a high near 81. Chance of precipitation is 20%.
Monday Night
A slight chance of showers. Mostly clear, with a low around 75. Chance of precipitation is 10%.
Tuesday
A slight chance of showers. Sunny, with a high near 82. Chance of precipitation is 10%.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 10%.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marathon Shores FL
 24.72°N 81.05°W (Elev. 0 ft)
Last Update:
2:15 pm EST Nov 28, 2025
Forecast Valid:
2pm EST Nov 28, 2025-6pm EST Dec 4, 2025
 
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