Above Average Temperatures for the West and Central Plains; Lake Effect Snow Continues

Well above average temperatures will prevail across the Plains and the West Coast this week, while a cold front will bring Arctic air to the South and East Coast Thursday and Friday. Lake effect snow is forecast downwind of the Great Lakes through Thursday along and behind the Arctic front, as well as mountain snow across the Southern Appalachians. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Overcast

N/A

Humidity NA
Wind Speed NW 5 mph
Barometer 29.95 in (1014.3 mb)
Dewpoint N/A
Visibility 10.00 mi
Last update 14 Jan 6:53 am EST
Extended Forecast for

Marathon FL

  • Today

    Today: A chance of showers and thunderstorms.  Partly sunny, with a high near 79. Light southwest wind becoming west 5 to 10 mph in the morning.  Chance of precipitation is 40%.

    High: 79 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 69. Northwest wind around 10 mph.  Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm.  Partly sunny, with a high near 74. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 52 °F

    Partly Cloudy
    and Breezy

  • Friday

    Friday: Sunny, with a high near 63. North wind 10 to 15 mph.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers.  Mostly cloudy, with a low around 63. Chance of precipitation is 10%.

    Low: 63 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Light southwest wind becoming west 5 to 10 mph in the morning. Chance of precipitation is 40%.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Northwest wind around 10 mph. Chance of precipitation is 40%.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 74. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 52. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Friday
Sunny, with a high near 63. North wind 10 to 15 mph.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Partly sunny, with a high near 73.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 10%.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 58. Breezy.
M.L.King Day
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Marathon FL
 24.72°N 81.07°W (Elev. 7 ft)
7:15 am EST Jan 14, 2026
7am EST Jan 14, 2026-6pm EST Jan 20, 2026
 
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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