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

Key West International Airport (KEYW)

Lat: 24.56°NLon: 81.76°WElev: 3ft.

Partly Cloudy

77°F

25°C

Humidity 85%
Wind Speed E 3 mph
Barometer 29.99 in (1016.0 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 19 Apr 6:53 am EDT
Extended Forecast for

3 Miles SW Marquesas Keys FL

  • Today

    Today: Partly sunny, with a high near 80. Northeast wind around 10 mph.

    High: 80 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 75. North wind 10 to 15 mph.

    Low: 75 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79. North wind 10 to 15 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers. Mostly cloudy, with a low around 74. Very windy, with a north wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    Showers and
    Very Windy

  • Tuesday

    Tuesday: A slight chance of showers. Mostly sunny, with a high near 77. Very windy, with a northeast wind 25 to 30 mph. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers and
    Very Windy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. Windy.

    Low: 74 °F

    Mostly Clear
    and Windy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. Windy.

    High: 77 °F

    Mostly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: A slight chance of showers. Mostly cloudy, with a low around 73. Windy. Chance of precipitation is 10%.

    Low: 73 °F

    Slight Chance
    Showers and
    Windy

  • Thursday

    Thursday: A slight chance of showers. Partly sunny, with a high near 77. Breezy. Chance of precipitation is 10%.

    High: 77 °F

    Slight Chance
    Showers and
    Breezy

Detailed Forecast

Today
Partly sunny, with a high near 80. Northeast wind around 10 mph.
Tonight
Mostly cloudy, with a low around 75. North wind 10 to 15 mph.
Monday
Mostly sunny, with a high near 79. North wind 10 to 15 mph.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 74. Very windy, with a north wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Chance of precipitation is 20%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 77. Very windy, with a northeast wind 25 to 30 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 74. Windy.
Wednesday
Mostly sunny, with a high near 77. Windy.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 73. Windy. Chance of precipitation is 10%.
Thursday
A slight chance of showers. Partly sunny, with a high near 77. Breezy. Chance of precipitation is 10%.
Thursday Night
Partly cloudy, with a low around 74. Breezy.
Friday
Mostly sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 76.
Saturday
Sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Marquesas Keys FL
 24.54°N 82.13°W (Elev. 0 ft)
Last Update:
6:15 am EDT Apr 19, 2026
Forecast Valid:
7am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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