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

Tracking Areas of Fire Weather, Winter Weather, and Severe Weather Thursday

Continuation of gusty winds and low relative humidity will bring additional periods of critical fire weather to the southern Plains Thursday and Friday. Another Pacific storm will continue gusty winds and heavy snow over the western mountains into Thursday. Severe thunderstorms are possible across parts of the middle Mississippi into lower Ohio Valleys Thursday afternoon into early evening. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Mostly Cloudy

74°F

23°C

Humidity 82%
Wind Speed SE 8 mph
Barometer 30.00 in (1016.0 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 19 Feb 2:53 am EST
Extended Forecast for

Key Colony Beach FL

  • Overnight

    Overnight: Partly cloudy, with a low around 72. Southeast wind around 10 mph.

    Low: 72 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 81. Southeast wind 5 to 10 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. Southeast wind around 10 mph.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. Southeast wind around 5 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. East wind 5 to 10 mph.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59. Windy.

    Low: 59 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Windy

Detailed Forecast

Overnight
Partly cloudy, with a low around 72. Southeast wind around 10 mph.
Thursday
Sunny, with a high near 81. Southeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 73. Southeast wind around 10 mph.
Friday
Sunny, with a high near 83. Southeast wind around 5 mph.
Friday Night
Mostly clear, with a low around 73. East wind 5 to 10 mph.
Saturday
Sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 72.
Sunday
Sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 59. Windy.
Monday
Sunny, with a high near 66. Breezy.
Monday Night
Partly cloudy, with a low around 50. Breezy.
Tuesday
Sunny, with a high near 64. Breezy.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Key Colony Beach FL
 24.74°N 81.02°W (Elev. 0 ft)
Last Update:
3:15 am EST Feb 19, 2026
Forecast Valid:
3am EST Feb 19, 2026-6pm EST Feb 25, 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