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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. 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 87%
Wind Speed Calm
Barometer 30.00 in (1015.8 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 3 Jan 5:53 am EST
Extended Forecast for

31 Miles N Marathon Airport FL

  • Today

    Today: Sunny, with a high near 69. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. South wind 5 to 7 mph.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 72. Southwest wind 7 to 11 mph becoming west in the afternoon.

    High: 72 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. Light and variable wind becoming north around 6 mph in the evening.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 73. Northeast wind around 7 mph becoming south in the afternoon.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. Northeast wind 3 to 5 mph.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. Northeast wind 5 to 7 mph becoming southeast in the afternoon.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 64. Calm wind becoming east around 6 mph after midnight.

    Low: 64 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. Northeast wind 6 to 8 mph.

    High: 74 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 69. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 63. South wind 5 to 7 mph.
Sunday
Sunny, with a high near 72. Southwest wind 7 to 11 mph becoming west in the afternoon.
Sunday Night
Mostly clear, with a low around 62. Light and variable wind becoming north around 6 mph in the evening.
Monday
Sunny, with a high near 73. Northeast wind around 7 mph becoming south in the afternoon.
Monday Night
Mostly clear, with a low around 64. Northeast wind 3 to 5 mph.
Tuesday
Sunny, with a high near 74. Northeast wind 5 to 7 mph becoming southeast in the afternoon.
Tuesday Night
Clear, with a low around 64. Calm wind becoming east around 6 mph after midnight.
Wednesday
Sunny, with a high near 74. Northeast wind 6 to 8 mph.
Wednesday Night
Clear, with a low around 65.
Thursday
Sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 67.
Friday
Sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
31 Miles N Marathon Airport FL
 25.19°N 81.15°W
Last Update:
4:26 am EST Jan 3, 2026
Forecast Valid:
6am EST Jan 3, 2026-6pm EST Jan 9, 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