Merritt Island, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Merritt Island, a community in Brevard County, Florida.
This Afternoon
88°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. East northeast wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Merritt Island
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 88°F | Slight Chance Showers And Thunderstorms | 15 mph ENE | 18% |
| Tonight | 77°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph NE | 20% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 39% |
| Saturday Night | 77°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 27% |
| Sunday | 88°F | Chance Showers And Thunderstorms | 0 to 10 mph NNE | 68% |
| Sunday Night | 75°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SE | 68% |
| Monday | 89°F | Showers And Thunderstorms Likely | 0 to 10 mph NNE | 67% |
| Monday Night | 75°F | Showers And Thunderstorms Likely | 0 to 5 mph SSE | 67% |
| Tuesday | 89°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 73% |
| Tuesday Night | 76°F | Showers And Thunderstorms Likely | 0 to 5 mph SSE | 73% |
| Wednesday | 89°F | Chance Showers And Thunderstorms | 0 to 10 mph NNW | 70% |
| Wednesday Night | 76°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph SE | 70% |
| Thursday | 88°F | Showers And Thunderstorms Likely | 5 to 15 mph N | 63% |
| Thursday Night | 77°F | Showers And Thunderstorms Likely | 5 to 10 mph NNE | 63% |
Forecast source: National Weather Service (api.weather.gov) for Merritt Island (28.309, -80.676). Updated through the day.
Growing snapshot for Merritt Island
Last spring frost
Jan 24
First fall frost
Jan 9
Growing season
359 days
Hardiness zone
10a
More local growing data for Merritt Island: nearby ZIP 32952 weather · frost dates · planting calendar · Florida frost dates
Nearby towns & communities
Cape Canaveral
Cocoa
Cocoa Beach
Cocoa West
Grant-Valkaria
Indialantic
Indian Harbour Beach
June Park
Malabar
Melbourne
Melbourne Beach
Melbourne Village
Micco
Mims
North Merritt Island
Palm Bay
Palm Shores
Patrick AFB
Port St. John
Rockledge
Satellite Beach
Scottsmoor
Sharpes
South Patrick Shores
Titusville
Tropical Park
Viera East
Viera West
West Canaveral Groves
West Melbourne
Climate data from the nearest NOAA station, Melbourne Wfo, Fl (14.3 mi from Merritt Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.