Marathon, FL Weather & Growing Conditions
Tonight
77°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly cloudy, with a low around 77. East wind 5 to 10 mph. Chance of precipitation is 50%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 77°F | Chance Showers And Thunderstorms | 5 to 10 mph E | 51% |
| Wednesday | 82°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 mph E | 51% |
| Wednesday Night | 77°F | Slight Chance Showers And Thunderstorms | 5 mph NE | 24% |
| Thursday | 82°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph NE | 16% |
| Thursday Night | 76°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 to 10 mph NE | 13% |
| Friday | 81°F | Sunny | 5 mph NE | 5% |
| Friday Night | 76°F | Mostly Clear | 5 mph NE | 5% |
| Saturday | 81°F | Sunny | 5 mph NE | 1% |
| Saturday Night | 75°F | Mostly Clear | 5 mph NE | 5% |
| Sunday | 81°F | Sunny | 5 mph N | 5% |
| Sunday Night | 74°F | Slight Chance Rain Showers | 5 to 10 mph N | 17% |
| Monday | 80°F | Slight Chance Rain Showers | 10 to 15 mph N | 24% |
| Monday Night | 72°F | Slight Chance Rain Showers | 15 to 20 mph NE | 24% |
| Tuesday | 79°F | Slight Chance Rain Showers | 15 to 20 mph NE | 21% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marathon, FL
Growing season
365 days
Hardiness zone
11b
Explore more for Marathon, FL: full frost dates · planting calendar · Florida frost dates
Climate data from the nearest NOAA station, Curry Hammock Sp, Fl (0.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.