Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

71°F

22°C

Humidity 79%
Wind Speed Calm
Barometer 30.08 in (1018.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 27 Dec 8:53 pm EST
Extended Forecast for

Marathon Shores FL

  • Tonight

    Tonight: Mostly clear, with a low around 68. North wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 78. Northeast wind around 5 mph.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69. East wind around 5 mph.

    Low: 69 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 79. Northeast wind around 5 mph becoming calm  in the morning.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. Northwest wind around 5 mph.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers.  Mostly sunny, with a high near 76. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    Showers

  • Tuesday Night

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

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 68. North wind around 5 mph.
Sunday
Mostly sunny, with a high near 78. Northeast wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 69. East wind around 5 mph.
Monday
Sunny, with a high near 79. Northeast wind around 5 mph becoming calm in the morning.
Monday Night
Mostly clear, with a low around 67. Northwest wind around 5 mph.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 76. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 59.
New Year's Day
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 74.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Marathon Shores FL
 24.72°N 81.05°W (Elev. 0 ft)
9:15 pm EST Dec 27, 2025
9pm EST Dec 27, 2025-6pm EST Jan 3, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database