Lake Effect Snow in the Lower Great Lakes; Unsettled Pattern in the Pacific Northwest

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. Lake Effect Snow Warnings have been issued. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest this afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

68°F

20°C

Humidity 81%
Wind Speed W 3 mph
Barometer 30.09 in (1018.8 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 12 Feb 6:53 pm EST
Extended Forecast for

Marathon FL

  • Tonight

    Tonight: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 62. Northwest wind around 5 mph.

    Low: 62 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am.  Otherwise, sunny, with a high near 74. Northwest wind around 5 mph.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. Northwest wind around 5 mph becoming northeast after midnight.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 74. East wind 5 to 10 mph.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers.  Partly cloudy, with a low around 68. East wind 10 to 15 mph.  Chance of precipitation is 10%.

    Low: 68 °F

    Slight Chance
    Showers

  • Sunday

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

    High: 76 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers.  Partly cloudy, with a low around 69. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers

  • Washington's Birthday

    Washington's Birthday: A chance of showers.  Mostly sunny, with a high near 75. Chance of precipitation is 40%.

    High: 75 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers.  Mostly clear, with a low around 64. Chance of precipitation is 10%.

    Low: 64 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 62. Northwest wind around 5 mph.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 74. Northwest wind around 5 mph.
Friday Night
Partly cloudy, with a low around 62. Northwest wind around 5 mph becoming northeast after midnight.
Saturday
Mostly sunny, with a high near 74. East wind 5 to 10 mph.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 68. East wind 10 to 15 mph. Chance of precipitation is 10%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 76. Chance of precipitation is 20%.
Sunday Night
A chance of showers. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Washington's Birthday
A chance of showers. Mostly sunny, with a high near 75. Chance of precipitation is 40%.
Monday Night
A slight chance of showers. Mostly clear, with a low around 64. Chance of precipitation is 10%.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Marathon FL
 24.72°N 81.07°W (Elev. 7 ft)
6:15 pm EST Feb 12, 2026
7pm EST Feb 12, 2026-6pm EST Feb 19, 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