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

A Couple of Fast Moving Storms Affecting Areas Along and East of the Rockies

A couple of storm systems will impact travel conditions through the first half of this weekend. Heavy snow from the mountains of the West will move into the upper Midwest and upper Great Lakes through tonight. Record warmth and Gulf moisture along and east of the Mississippi River will fuel severe thunderstorms, heavy rainfall, fog for the Tennessee Valley and deep South on Friday into Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Mostly Cloudy

77°F

25°C

Humidity 82%
Wind Speed E 10 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 8 Jan 6:53 pm EST
Extended Forecast for

Key Colony Beach FL

  • Tonight

    Tonight: A slight chance of showers. Partly cloudy, with a low around 72. East wind 10 to 15 mph. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 81. East wind around 15 mph.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 72. East wind 10 to 15 mph.

    Low: 72 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 79. East wind 10 to 15 mph.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers. Mostly cloudy, with a low around 71. East wind 5 to 10 mph. Chance of precipitation is 10%.

    Low: 71 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 10%.

    High: 78 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers. Partly cloudy, with a low around 63. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 20%.

    High: 74 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers. Partly cloudy, with a low around 72. East wind 10 to 15 mph. Chance of precipitation is 20%.
Friday
Sunny, with a high near 81. East wind around 15 mph.
Friday Night
Partly cloudy, with a low around 72. East wind 10 to 15 mph.
Saturday
Mostly sunny, with a high near 79. East wind 10 to 15 mph.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 71. East wind 5 to 10 mph. Chance of precipitation is 10%.
Sunday
A slight chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 10%.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
Monday
A slight chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 20%.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 20%.
Tuesday
A slight chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 20%.
Wednesday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Key Colony Beach FL
 24.71°N 81.02°W (Elev. 0 ft)
Last Update:
7:15 pm EST Jan 8, 2026
Forecast Valid:
7pm EST Jan 8, 2026-6pm EST Jan 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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