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

Heavy Rain Across the Southern US; Unsettled Pattern in the Pacific Northwest

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains Friday, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. High elevation snow and mixed precipitation and rain in the lower elevations will impact the Pacific Northwest this weekend before a stronger system moves in early next week. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

66°F

19°C

Humidity 87%
Wind Speed Calm
Barometer 30.11 in (1019.4 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 12 Feb 11:53 pm EST
Extended Forecast for

Key Colony Beach FL

  • Overnight

    Overnight: Partly cloudy, with a low around 64. Northwest wind around 5 mph.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 73. Northwest wind around 5 mph.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64. Northwest wind around 5 mph becoming northeast after midnight.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73. East wind 5 to 10 mph.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers. Partly cloudy, with a low around 69. East wind 10 to 15 mph. Chance of precipitation is 10%.

    Low: 69 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers. Mostly sunny, with a high near 75. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    Showers

  • Washington's Birthday

    Washington's Birthday: A chance of showers. Mostly sunny, with a high near 75. Chance of precipitation is 40%.

    High: 75 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers. Mostly clear, with a low around 65. Chance of precipitation is 10%.

    Low: 65 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 64. Northwest wind around 5 mph.
Friday
Sunny, with a high near 73. Northwest wind around 5 mph.
Friday Night
Partly cloudy, with a low around 64. Northwest wind around 5 mph becoming northeast after midnight.
Saturday
Mostly sunny, with a high near 73. East wind 5 to 10 mph.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 69. East wind 10 to 15 mph. Chance of precipitation is 10%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 75. Chance of precipitation is 20%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Washington's Birthday
A chance of showers. Mostly sunny, with a high near 75. Chance of precipitation is 40%.
Monday Night
A slight chance of showers. Mostly clear, with a low around 65. Chance of precipitation is 10%.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny, with a high near 74.
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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:
12:15 am EST Feb 13, 2026
Forecast Valid:
12am EST Feb 13, 2026-6pm EST Feb 19, 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