Marathon, FL Weather & Growing Conditions
Tonight
80°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Partly cloudy, with a low around 80. East wind 5 to 10 mph. Chance of precipitation is 60%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 80°F | Showers And Thunderstorms Likely | 5 to 10 mph E | 57% |
| Saturday | 87°F | Showers And Thunderstorms Likely | 5 mph E | 58% |
| Saturday Night | 80°F | Showers And Thunderstorms Likely | 5 mph SE | 61% |
| Sunday | 87°F | Showers And Thunderstorms Likely | 5 mph S | 61% |
| Sunday Night | 81°F | Showers And Thunderstorms Likely | 5 to 10 mph S | 60% |
| Monday | 87°F | Showers And Thunderstorms Likely | 5 mph S | 60% |
| Monday Night | 81°F | Showers And Thunderstorms Likely | 5 to 15 mph S | 69% |
| Tuesday | 88°F | Showers And Thunderstorms Likely | 5 to 10 mph S | 71% |
| Tuesday Night | 81°F | Showers And Thunderstorms | 5 to 10 mph SE | 76% |
| Wednesday | 87°F | Showers And Thunderstorms | 5 to 10 mph SE | 76% |
| Wednesday Night | 81°F | Showers And Thunderstorms | 5 to 10 mph SE | 76% |
| Thursday | 87°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 68% |
| Thursday Night | 81°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 68% |
| Friday | 87°F | Showers And Thunderstorms Likely | 5 mph E | 67% |
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 Sep 19, 2026.