Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.
A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >
Current conditions at
The Florida Keys - Marathon International Airport (KMTH)
Lat: 24.73°NLon: 81.05°WElev: 13ft.
A Few Clouds
73°F
23°C
| Humidity | 84% |
| Wind Speed | Vrbl 7 mph |
| Barometer | 30.01 in (1016.0 mb) |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Last update | 30 Dec 6:53 am EST |
Extended Forecast for
Marathon Shores FL
Today
High: 71 °F
Slight Chance
ShowersTonight
Low: 54 °F
Mostly Clear
Wednesday
High: 63 °F
Sunny
Wednesday Night
Low: 55 °F
Mostly Clear
New Year's Day
High: 68 °F
Sunny
Thursday Night
Low: 59 °F
Mostly Clear
Friday
High: 71 °F
Sunny
Friday Night
Low: 63 °F
Mostly Clear
Saturday
High: 75 °F
Sunny
Detailed Forecast
Today
A slight chance of showers before 1pm. Mostly sunny, with a high near 71. Northwest wind 10 to 15 mph. Chance of precipitation is 10%.
Tonight
Mostly clear, with a low around 54. North wind around 15 mph.
Wednesday
Sunny, with a high near 63. North wind 10 to 15 mph.
Wednesday Night
Mostly clear, with a low around 55. North wind 10 to 15 mph.
New Year's Day
Sunny, with a high near 68. North wind around 10 mph.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 67.
Monday
Sunny, with a high near 76.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marathon Shores FL
24.74°N 81.04°W (Elev. 0 ft)
24.74°N 81.04°W (Elev. 0 ft)
7:15 am EST Dec 30, 2025
7am EST Dec 30, 2025-6pm EST Jan 5, 2026
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