Merritt Island, FL Weather & Growing Conditions
Tonight
79°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 79. Northeast wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 79°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph NE | 21% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 5 to 10 mph NNE | 38% |
| Saturday Night | 78°F | Chance Showers And Thunderstorms | 0 to 10 mph E | 27% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 67% |
| Sunday Night | 77°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 to 10 mph SE | 67% |
| Monday | 85°F | Showers And Thunderstorms Likely | 0 to 10 mph NE | 66% |
| Monday Night | 76°F | Showers And Thunderstorms Likely | 5 mph SE | 66% |
| Tuesday | 87°F | Showers And Thunderstorms Likely | 5 to 10 mph S | 72% |
| Tuesday Night | 77°F | Showers And Thunderstorms Likely | 5 mph SSE | 72% |
| Wednesday | 87°F | Chance Showers And Thunderstorms | 5 to 10 mph NNW | 69% |
| Wednesday Night | 77°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 to 10 mph ESE | 69% |
| Thursday | 86°F | Showers And Thunderstorms Likely | 5 to 15 mph N | 63% |
| Thursday Night | 77°F | Showers And Thunderstorms Likely | 5 to 15 mph NNE | 63% |
| Friday | 86°F | Showers And Thunderstorms Likely | 10 to 20 mph NE | 61% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Merritt Island, FL
Last spring frost
Jan 24
First fall frost
Jan 9
Growing season
359 days
Hardiness zone
10a
Explore more for Merritt Island, FL: full frost dates · planting calendar · Florida frost dates
Climate data from the nearest NOAA station, Melbourne Wfo, Fl (14.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.