Marathon, FL Weather & Growing Conditions
Today
89°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 89. South wind 0 to 5 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 38% |
| Tonight | 83°F | Chance Showers And Thunderstorms | 5 to 10 mph E | 41% |
| Wednesday | 89°F | Showers And Thunderstorms Likely | 10 mph E | 63% |
| Wednesday Night | 83°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 10 to 15 mph E | 63% |
| Thursday | 88°F | Chance Showers And Thunderstorms | 15 mph E | 51% |
| Thursday Night | 82°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 15 to 20 mph E | 60% |
| Friday | 88°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 15 to 20 mph E | 60% |
| Friday Night | 83°F | Chance Showers And Thunderstorms | 15 mph SE | 51% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 10 to 15 mph SE | 51% |
| Saturday Night | 83°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 32% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 15 mph E | 32% |
| Sunday Night | 84°F | Chance Showers And Thunderstorms | 15 mph E | 27% |
| Monday | 89°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 27% |
| Monday Night | 84°F | Slight Chance Showers And Thunderstorms | 15 mph E | 18% |
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 Aug 4, 2026.