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.

Fair

79°F

26°C

Humidity 82%
Wind Speed E 6 mph
Barometer 30.02 in (1017.3 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 18 Apr 11:53 pm EDT
Extended Forecast for

3 Miles SW Marquesas Keys FL

  • Overnight

    Overnight: Mostly cloudy, with a low around 76. East wind around 10 mph.

    Low: 76 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 79. East wind around 10 mph.

    High: 79 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: 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. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers and
    Very Windy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 73. Windy.

    Low: 73 °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

Detailed Forecast

Overnight
Mostly cloudy, with a low around 76. East wind around 10 mph.
Sunday
Partly sunny, with a high near 79. East wind around 10 mph.
Sunday Night
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. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 73. 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 75. Breezy.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 75.
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:
12:15 am EDT Apr 19, 2026
Forecast Valid:
12am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation