Jupiter Island, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jupiter Island, a town in Martin County, Florida.
Tonight
78°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly cloudy, with a low around 78. North wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Jupiter Island
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 78°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 33% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 0 to 5 mph NNE | 50% |
| Saturday Night | 76°F | Chance Showers And Thunderstorms | 0 to 5 mph SSE | 42% |
| Sunday | 86°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph N | 70% |
| Sunday Night | 75°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SSE | 70% |
| Monday | 87°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph S | 70% |
| Monday Night | 75°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 70% |
| Tuesday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 84% |
| Tuesday Night | 76°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph S | 84% |
| Wednesday | 87°F | Chance Showers And Thunderstorms | 0 to 5 mph SSE | 84% |
| Wednesday Night | 76°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph SSE | 84% |
| Thursday | 87°F | Showers And Thunderstorms Likely | 5 to 10 mph NW | 70% |
| Thursday Night | 77°F | Showers And Thunderstorms Likely | 0 to 5 mph NE | 70% |
| Friday | 87°F | Chance Showers And Thunderstorms | 5 to 10 mph NNE | 71% |
Forecast source: National Weather Service (api.weather.gov) for Jupiter Island (27.027, -80.102). Updated through the day.
Growing snapshot for Jupiter Island
Last spring frost
Jan 26
First fall frost
Jan 16
Growing season
365 days
Hardiness zone
10b
More local growing data for Jupiter Island: nearby ZIP 33469 weather · frost dates · planting calendar · Florida frost dates
Nearby towns & communities
Hobe Sound
Hutchinson Island South
Indiantown
Jensen Beach
North River Shores
Ocean Breeze
Palm City
Port Salerno
Rio
Sewall's Point
Stuart
Tequesta
Climate data from the nearest NOAA station, Juno Beach, Fl (9.5 mi from Jupiter Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.