


NWS Forecast for: Marathon FL Issued by: National Weather Service Key West, FL Last Update: 5:15 am EDT Jun 18, 2025 | ![]() |
Overnight: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 82. Southeast wind around 10 mph. Chance of precipitation is 20%. Wednesday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind 10 to 15 mph. Chance of precipitation is 20%. Wednesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 81. East wind around 10 mph. Chance of precipitation is 20%. Juneteenth: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind around 10 mph. Chance of precipitation is 30%. Thursday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 81. East wind around 10 mph. Chance of precipitation is 20%. Friday: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%. Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 30%. Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%. Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 30%. Sunday: A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%. Sunday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 80. Chance of precipitation is 40%. Monday: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 40%. Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 81. Chance of precipitation is 40%. Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%. | |
Marathon FL 24.72°N 81.07°W (Elev. 7 ft) | |
Visit your local NWS office at: https://www.weather.gov/key |