Record Warmth Lingers; Fire Weather Concerns; Unsettled Pacific Northwest

More record warm temperatures are forecast this week from California, Southwest, Plains then into the Mississippi Valley and Southeast. The warmth combining with dry conditions may result in elevated to locally critical fire weather conditions. Meanwhile, another Pacific system will move across the Pacific Northwest with lower elevation rain and mountain snows. For Hawaii, conditions improving. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

A Few Clouds

66°F

19°C

Humidity 84%
Wind Speed Calm
Barometer 30.05 in (1017.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 23 Mar 4:53 am EDT
Extended Forecast for

Key Colony Beach FL

  • Today

    Today: Sunny, with a high near 77. Northeast wind around 5 mph becoming calm  in the morning.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 68. North wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. North wind around 5 mph becoming calm  in the morning.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. Northeast wind around 5 mph.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 77. East wind around 5 mph.

    High: 77 °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 77.

    High: 77 °F

    Sunny

  • Thursday Night

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

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 77. Northeast wind around 5 mph becoming calm in the morning.
Tonight
Mostly clear, with a low around 68. North wind around 5 mph.
Tuesday
Sunny, with a high near 78. North wind around 5 mph becoming calm in the morning.
Tuesday Night
Partly cloudy, with a low around 70. Northeast wind around 5 mph.
Wednesday
Sunny, with a high near 77. East wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 71.
Thursday
Sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 72.
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. Partly cloudy, with a low around 71. Chance of precipitation is 10%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 77. Windy. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Key Colony Beach FL
 24.74°N 81.02°W (Elev. 0 ft)
4:15 am EDT Mar 23, 2026
5am EDT Mar 23, 2026-6pm EDT Mar 29, 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