Marathon, Florida Weather
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Click for Coastal Flood Statement for Marathon, Florida
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Weather Forecast for Marathon, Florida : Monroe County
Issued: 3:15 pm EDT Oct 16, 2025 Latitude: 24.7137524 Longitude: -81.0903512 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday
10% chance of rain on This Afternoon 30% chance of rain on Tonight 30% chance of rain on Friday Sunny on Saturday 30% chance of rain on Sunday 20% chance of rain on Monday 10% chance of rain on Tuesday 10% chance of rain on Wednesday
High: 84°F Low: 76°F High: 84°F High: 83°F High: 84°F High: 84°F High: 84°F High: 84°F
Low: 76°F Low: 78°F Low: 78°F Low: 77°F Low: 78°F  
Rain Rain Rain Sunny Rain Rain Rain Rain
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10% chance of rain This Afternoon This Afternoon... A slight chance of showers. Mostly sunny, with a high near 84. Northeast wind around 10 mph. Chance of precipitation is 10%.
30% chance of rain Tonight Tonight... A chance of showers, mainly after 8pm. Partly cloudy, with a low around 76. Northeast wind 10 to 15 mph. Chance of precipitation is 30%.
30% chance of rain Friday Friday... A chance of showers. Mostly sunny, with a high near 84. Northeast wind around 15 mph. Chance of precipitation is 30%.
10% chance of rain Friday Night Friday Night... A slight chance of showers. Partly cloudy, with a low around 76. Breezy, with an east wind around 20 mph. Chance of precipitation is 10%.
Sunny on Saturday Saturday... Sunny, with a high near 83. East wind around 15 mph.
20% chance of rain Saturday Night Saturday Night... A slight chance of showers. Partly cloudy, with a low around 78. Chance of precipitation is 20%.
30% chance of rain Sunday Sunday... A chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
30% chance of rain Sunday Night Sunday Night... A chance of showers. Partly cloudy, with a low around 78. Chance of precipitation is 30%.
20% chance of rain Monday Monday... A slight chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
20% chance of rain Monday Night Monday Night... A slight chance of showers. Partly cloudy, with a low around 77. Chance of precipitation is 20%.
10% chance of rain Tuesday Tuesday... A slight chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 10%.
10% chance of rain Tuesday Night Tuesday Night... A slight chance of showers. Mostly clear, with a low around 78. Chance of precipitation is 10%.
10% chance of rain Wednesday Wednesday... A slight chance of showers. Sunny, with a high near 84. Chance of precipitation is 10%.
Sun Almanac for Marathon, Florida
Sunrise: 07:23 AM
Sunset: 6:57 PM
Civil Sunrise:07:00 AM
Civil Sunset: 7:20 PM
Nautical Sunrise: 06:34 AM
Nautical Sunset: 7:46 PM
Astro Sunrise: 06:07 AM
Astro Sunset: 8:13 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.