Heat Continues Across the Central and Western U.S.; Tracking Hazardous Weather Across the Northern U.S.

Early-season record warmth will persist across portions of the western and central U.S. through mid week, with high temperatures approaching 90 degrees from Texas to the Ohio Valley. Rain and mountain snow are possible across the Pacific Northwest Wednesday, with Severe Thunderstorms and wintry weather expected across the Northeast Thursday and Friday. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

73°F

23°C

Humidity 69%
Wind Speed Calm
Barometer 30.06 in (1018.0 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 24 Mar 7:53 pm EDT
Extended Forecast for

Key Colony Beach FL

  • Tonight

    Tonight: Mostly clear, with a low around 69. Northeast wind 5 to 10 mph.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77. Northeast wind 5 to 10 mph.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 71. East wind around 5 mph.

    Low: 71 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. East wind around 10 mph.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. East wind around 10 mph.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Friday Night

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

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers.  Mostly clear, with a low around 72. Chance of precipitation is 10%.

    Low: 72 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 69. Northeast wind 5 to 10 mph.
Wednesday
Sunny, with a high near 77. Northeast wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 71. East wind around 5 mph.
Thursday
Sunny, with a high near 77. East wind around 10 mph.
Thursday Night
Mostly clear, with a low around 72. East wind around 10 mph.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 78.
Saturday Night
A slight chance of showers. Mostly clear, with a low around 72. Chance of precipitation is 10%.
Sunday
A chance of showers. Mostly sunny, with a high near 77. Windy. Chance of precipitation is 30%.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 71. Windy. Chance of precipitation is 20%.
Monday
A slight chance of showers. Partly sunny, with a high near 77. Windy. Chance of precipitation is 20%.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 71. Windy. Chance of precipitation is 10%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 77. Windy. Chance of precipitation is 10%.
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ABOUT THIS FORECAST

 
Point Forecast:
Key Colony Beach FL
 24.74°N 81.02°W (Elev. 0 ft)
8:15 pm EDT Mar 24, 2026
8pm EDT Mar 24, 2026-6pm EDT Mar 31, 2026
 
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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