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

Dangerous Cold and Gusty Winds Anticipated This Weekend

A significant arctic outbreak will bring frigid temperatures and dangerously cold wind chills to the Northeast and Mid-Atlantic this weekend. Strong winds which could produce tree damage and power outages, and periods of snow squalls are also possible. Relief from this cold and a warming trend is forecast to commence by the beginning to middle of next week. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

58°F

14°C

Humidity 75%
Wind Speed N 10 G 20 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 5 Feb 8:53 pm EST
Extended Forecast for

Marathon FL

  • Tonight

    Tonight: Mostly clear, with a low around 52. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 52 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Sunny, with a high near 65. North wind 10 to 15 mph.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. Northwest wind around 10 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 71. Northwest wind 5 to 10 mph.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58. Northwest wind 10 to 15 mph becoming north after midnight.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday
Sunny, with a high near 65. North wind 10 to 15 mph.
Friday Night
Mostly clear, with a low around 58. Northwest wind around 10 mph.
Saturday
Sunny, with a high near 71. Northwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 58. Northwest wind 10 to 15 mph becoming north after midnight.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 62.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Sunny, with a high near 72.
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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:
9:15 pm EST Feb 5, 2026
Forecast Valid:
9pm EST Feb 5, 2026-6pm EST Feb 12, 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