Severe Thunderstorms in the Southern U.S.; Heavy Snow in the North-Central U.S.

Isolated severe thunderstorms are likely across parts of the Southeast/Deep South Tuesday morning into early evening. A couple tornadoes are possible in parts of eastern Mississippi and Alabama. In the north-central U.S., a storm will bring heavy snow and gusty to high winds over parts of the northern Plains and Upper Midwest Tuesday before impacting the Great Lakes Wednesday into Thanksgiving. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

77°F

25°C

Humidity 69%
Wind Speed E 10 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 25 Nov 4:53 am EST
Extended Forecast for

Key Colony Beach FL

  • Today

    Today: A slight chance of showers after 7am.  Sunny, with a high near 80. East wind around 10 mph.  Chance of precipitation is 10%.

    High: 80 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers.  Mostly clear, with a low around 75. East wind around 10 mph.  Chance of precipitation is 10%.

    Low: 75 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers.  Sunny, with a high near 81. East wind 5 to 10 mph.  Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers.  Partly cloudy, with a low around 73. East wind around 5 mph.  Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    Showers

  • Thanksgiving Day

    Thanksgiving Day: A chance of showers.  Partly sunny, with a high near 79. East wind around 5 mph.  Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers.  Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers

  • Friday

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

    High: 76 °F

    Slight Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A slight chance of showers.  Partly cloudy, with a low around 69. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers.  Mostly sunny, with a high near 77. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers

Detailed Forecast

Today
A slight chance of showers after 7am. Sunny, with a high near 80. East wind around 10 mph. Chance of precipitation is 10%.
Tonight
A slight chance of showers. Mostly clear, with a low around 75. East wind around 10 mph. Chance of precipitation is 10%.
Wednesday
A slight chance of showers. Sunny, with a high near 81. East wind 5 to 10 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 73. East wind around 5 mph. Chance of precipitation is 30%.
Thanksgiving Day
A chance of showers. Partly sunny, with a high near 79. East wind around 5 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Friday
A slight chance of showers. Mostly sunny, with a high near 76. Breezy. Chance of precipitation is 20%.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 69. Chance of precipitation is 20%.
Saturday
A slight chance of showers. Mostly sunny, with a high near 77. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 71. Chance of precipitation is 20%.
Sunday
A slight chance of showers. Sunny, with a high near 80. Chance of precipitation is 10%.
Sunday Night
A slight chance of showers. Mostly clear, with a low around 75. Chance of precipitation is 10%.
Monday
A slight chance of showers. Sunny, with a high near 80. Chance of precipitation is 10%.
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ABOUT THIS FORECAST

 
Point Forecast:
Key Colony Beach FL
 24.71°N 81.02°W (Elev. 0 ft)
4:15 am EST Nov 25, 2025
5am EST Nov 25, 2025-6pm EST Dec 1, 2025
 
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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