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

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Overcast

75°F

24°C

Humidity 88%
Wind Speed Calm
Barometer 30.07 in (1018.2 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 13 Jan 5:53 pm EST
Extended Forecast for

Key Colony Beach FL

  • Tonight

    Tonight: Partly cloudy, with a low around 68. Southeast wind around 5 mph becoming calm after midnight.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Calm wind becoming north around 5 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Mostly cloudy, with a low around 64. Northeast wind 5 to 15 mph. Chance of precipitation is 10%.

    Low: 64 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers. Mostly sunny, with a high near 72. Northeast wind around 15 mph. Chance of precipitation is 10%.

    High: 72 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers. Partly cloudy, with a low around 63. Northeast wind 10 to 15 mph. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers. Mostly sunny, with a high near 71. Chance of precipitation is 20%.

    High: 71 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 68. Southeast wind around 5 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 77. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 64. Northeast wind 5 to 15 mph. Chance of precipitation is 10%.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 72. Northeast wind around 15 mph. Chance of precipitation is 10%.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 63. Northeast wind 10 to 15 mph. Chance of precipitation is 20%.
Thursday
A slight chance of showers. Mostly sunny, with a high near 71. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 65.
Friday
Mostly sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 78.
Sunday Night
A slight chance of showers. Mostly clear, with a low around 68. Chance of precipitation is 10%.
M.L.King Day
A slight chance of showers. Mostly sunny, with a high near 75. Chance of precipitation is 10%.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Key Colony Beach FL
 24.71°N 81.02°W (Elev. 0 ft)
Last Update:
6:15 pm EST Jan 13, 2025
Forecast Valid:
6pm EST Jan 13, 2025-6pm EST Jan 20, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation