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Fort Jefferson, Florida Weather Forecast
Fort Jefferson, Florida Weather
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Weather Forecast for Fort Jefferson, Florida : Monroe County
Issued: 2:15 pm EST Dec 16, 2025 Latitude: 24.6279301 Longitude: -82.8728981 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Wednesday Thursday Friday Saturday Sunday Monday
Mostly Sunny on This Afternoon 10% chance of rain on Tonight 10% chance of rain on Wednesday 30% chance of  on Thursday 20% chance of rain on Friday Mostly Sunny on Saturday 10% chance of  on Sunday 10% chance of rain on Monday
High: 76°F Low: 72°F High: 78°F High: 79°F High: 78°F High: 77°F High: 78°F High: 77°F
Low: 74°F Low: 75°F Low: 73°F Low: 74°F Low: 74°F  
Mostly Sunny Rain Rain Partly Sunny Rain Mostly Sunny Partly Sunny Rain
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Current Conditions at
KEY WEST INTL - (KEYW)
75°
Mostly Clear
as of 1:53 PM EST
Rel. Humidity: 69%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 22 MPH
040° Northeast
Cloud Level(s): Few at 2200ft
Current Conditions at
KEY WEST NAS - (KNQX)
75°
Mostly Clear
as of 1:53 PM EST
Rel. Humidity: 60%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 25 MPH
070° East
Cloud Level(s): Few at 2500ft, Few at 25000ft
Current Conditions at
MARATHON KEY ARPT - (KMTH)
75°
Clear
as of 1:53 PM EST
Rel. Humidity: 64%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 22 MPH
050° Northeast
Cloud Level(s): Clear
Current Conditions at
NAPLES - (KAPF)
77°
Clear
as of 1:53 PM EST
Rel. Humidity: 41%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 20 MPH
070° East
Cloud Level(s): Clear
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 76. Windy, with an east wind 20 to 25 mph.

10% chance of rain Tonight Tonight... Isolated showers. Partly cloudy, with a low around 72. Windy, with an east wind 20 to 25 mph. Chance of precipitation is 10%.

10% chance of rain Wednesday Wednesday... Isolated showers. Mostly sunny, with a high near 78. Breezy, with an east wind around 20 mph. Chance of precipitation is 10%.

30% chance of rain Wednesday Night Wednesday Night... Scattered showers. Mostly cloudy, with a low around 74. Breezy, with an east wind around 20 mph. Chance of precipitation is 30%.

30% chance of  Thursday Thursday... Scattered showers. Partly sunny, with a high near 79. Breezy, with a southeast wind 15 to 20 mph. Chance of precipitation is 30%.

30% chance of rain Thursday Night Thursday Night... Scattered showers. Cloudy, with a low around 75. Chance of precipitation is 30%.

20% chance of rain Friday Friday... Isolated showers. Mostly cloudy, with a high near 78. Chance of precipitation is 20%.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 73.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 77.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 74.

10% chance of  Sunday Sunday... Isolated showers. Partly sunny, with a high near 78. Chance of precipitation is 10%.

10% chance of rain Sunday Night Sunday Night... Isolated showers. Mostly cloudy, with a low around 74. Breezy. Chance of precipitation is 10%.

10% chance of rain Monday Monday... Isolated showers. Mostly sunny, with a high near 77. Windy. Chance of precipitation is 10%.

Current Radar Image


Sun Almanac for Fort Jefferson, Florida
Sunrise: 07:09 AM
Sunset: 5:46 PM
Civil Sunrise:06:44 AM
Civil Sunset: 6:11 PM
Nautical Sunrise: 06:16 AM
Nautical Sunset: 6:39 PM
Astro Sunrise: 05:48 AM
Astro Sunset: 7:07 PM
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