Heavy Snow from the Midwest into the Great Lakes; Locally Heavy Rain in the Western Gulf Coast

A significant winter storm will produce a broad area of moderate to heavy snow from the Midwest through the western Great Lakes. Significant snow accumulations of 6-12 inches, and locally more than 1 foot, and gusty wind may cause hazardous travel conditions. Thunderstorms, some severe, and showers may produce locally heavy rain and isolated flash flooding along the western Gulf Coast. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

81°F

27°C

Humidity 74%
Wind Speed E 15 G 25 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 30 Nov 11:53 am EST
Extended Forecast for

Key Colony Beach FL

  • This Afternoon

    This Afternoon: A slight chance of showers.  Sunny, with a high near 80. East wind around 10 mph.  Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers.  Partly cloudy, with a low around 73. Northeast wind 5 to 10 mph.  Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers.  Sunny, with a high near 82. East wind around 10 mph.  Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. East wind around 10 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. Southeast wind 5 to 10 mph becoming southwest in the afternoon.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers. Sunny, with a high near 80. East wind around 10 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers. Partly cloudy, with a low around 73. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Monday
A slight chance of showers. Sunny, with a high near 82. East wind around 10 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 75. East wind around 10 mph.
Tuesday
Sunny, with a high near 83. Southeast wind 5 to 10 mph becoming southwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 71.
Thursday
Sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 70.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 73.
Saturday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Key Colony Beach FL
 24.74°N 81.02°W (Elev. 0 ft)
12:15 pm EST Nov 30, 2025
12pm EST Nov 30, 2025-6pm EST Dec 6, 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