What is today's weather forecast for The Florida Keys Marathon, FL?

Today's forecast for The Florida Keys Marathon shows a high of 81 degrees and a low of 72 degrees Fahrenheit. A slight chance of showers.

What is the 7-day weather forecast for The Florida Keys Marathon, FL?

The 7-day forecast for The Florida Keys Marathon shows highs from 80 to 83 degrees and lows from 70 to 74 degrees Fahrenheit. Expect precipitation on 1 day with chances of 20% or higher.

Will it rain in The Florida Keys Marathon, FL this week?

Yes, rain is possible in The Florida Keys Marathon this week. Precipitation chances: Sunday (20% chance).

How accurate is the The Florida Keys Marathon weather forecast?

WeatherForYou provides highly accurate The Florida Keys Marathon forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

The Florida Keys Marathon, FL Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

79°F
Feels Like 79°F

Humidity 77% Dew Point 71°F Wind E 9 MPH Barometer 30.01 in.

Solar Rad 103 w/m² Visibility 10 mi.

Report from a NOAA weather station 0.5 mi. N of central The Florida Keys Marathon
at 4:53 PM Sun, Nov 30, 2025

Point Forecast at a Glance

SunNov 30

20%

MonDec 1

TueDec 2

WedDec 3

ThuDec 4

FriDec 5

SatDec 6

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 80°F to 83°F. Mostly dry conditions with only one day showing rain chances.

Climate Context

This week's forecast shows temperatures running 2°F above the historical average for November-December. Normal highs for this period are around 79°F with lows around 67°F.

This Date in Weather History

1957 - Lee slope winds enhanced by Hurricane Nina gusted to 82 mph at Honolulu, Hawaii, a record wind gust for that location. Wainiha, on the island of Kauai, was deluged with 20.42 inches of rain, and 35 foot waves pounded some Kauai beaches, even though the eye of the hurricane was never within 120 miles of the islands.

The Florida Keys Marathon, FL 7 Day Weather Forecast Details

Sunday Nov 30

Day: A slight chance of showers. Sunny, with a high near 81. East wind around 10 mph. Chance of precipitation is 20%.

Night: A slight chance of showers. Partly cloudy, with a low around 72. Northeast wind around 10 mph. Chance of precipitation is 10%.

Monday Dec 1

Day: Mostly sunny, with a high near 81. East wind around 10 mph.

Night: Partly cloudy, with a low around 74. East wind around 10 mph.

Tuesday Dec 2

Day: Mostly sunny, with a high near 83. South wind 5 to 10 mph becoming southwest in the afternoon.

Night: Partly cloudy, with a low around 71.

Wednesday Dec 3

Day: Mostly sunny, with a high near 80.

Night: Partly cloudy, with a low around 70.

Thursday Dec 4

Day: Mostly sunny, with a high near 80.

Night: Partly cloudy, with a low around 72.

Friday Dec 5

Day: Mostly sunny, with a high near 81.

Night: Partly cloudy, with a low around 73.

Saturday Dec 6

Day: Mostly sunny, with a high near 83.

Night: Partly cloudy, with a low around 73.

Sunday Dec 7

Day: A slight chance of showers. Mostly sunny, with a high near 82. Chance of precipitation is 10%.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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