Jupiter Island, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jupiter Island, a town in Martin County, Florida.
Today
88°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely after 11am. Partly sunny, with a high near 88. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Jupiter Island
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Showers And Thunderstorms Likely | 5 mph S | 71% |
| Tonight | 77°F | Showers And Thunderstorms Likely | 0 to 5 mph SSE | 66% |
| Wednesday | 87°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 10 mph ESE | 62% |
| Wednesday Night | 79°F | Chance Showers And Thunderstorms | 5 to 10 mph ESE | 34% |
| Thursday | 87°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 52% |
| Thursday Night | 79°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 to 15 mph E | 70% |
| Friday | 87°F | Showers And Thunderstorms Likely | 15 mph E | 70% |
| Friday Night | 78°F | Showers And Thunderstorms Likely | 10 mph ESE | 55% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 10 to 15 mph SE | 49% |
| Saturday Night | 79°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph ESE | 49% |
| Sunday | 90°F | Chance Showers And Thunderstorms | 5 to 10 mph ESE | 31% |
| Sunday Night | 79°F | Chance Showers And Thunderstorms then Mostly Clear | 5 to 10 mph ESE | 31% |
| Monday | 90°F | Chance Showers And Thunderstorms | 5 to 10 mph ESE | 26% |
| Monday Night | 79°F | Chance Showers And Thunderstorms then Mostly Clear | 5 to 10 mph SE | 26% |
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 Aug 4, 2026.