Jupiter Island, FL Weather & Growing Conditions
Today
91°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely after 11am. Partly sunny. High near 91, with temperatures falling to around 86 in the afternoon. Heat index values as high as 102. 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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Showers And Thunderstorms Likely | 5 mph S | 69% |
| Tonight | 76°F | Showers And Thunderstorms Likely then Mostly Cloudy | 0 to 5 mph S | 62% |
| Wednesday | 89°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 10 mph ESE | 63% |
| Wednesday Night | 77°F | Chance Showers And Thunderstorms | 5 mph E | 33% |
| Thursday | 89°F | Chance Showers And Thunderstorms | 5 to 15 mph E | 52% |
| Thursday Night | 77°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 mph E | 69% |
| Friday | 89°F | Showers And Thunderstorms Likely | 10 to 15 mph E | 69% |
| Friday Night | 77°F | Showers And Thunderstorms Likely | 5 to 10 mph ESE | 56% |
| Saturday | 90°F | Chance Showers And Thunderstorms | 5 to 10 mph SE | 49% |
| Saturday Night | 77°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph ESE | 49% |
| Sunday | 91°F | Chance Showers And Thunderstorms | 5 to 10 mph ESE | 32% |
| Sunday Night | 78°F | Chance Showers And Thunderstorms then Mostly Clear | 5 to 10 mph ESE | 32% |
| Monday | 91°F | Chance Showers And Thunderstorms | 5 to 10 mph ESE | 28% |
| Monday Night | 77°F | Chance Showers And Thunderstorms then Mostly Clear | 5 mph SE | 28% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jupiter Island, FL
Last spring frost
Jan 26
First fall frost
Jan 16
Growing season
365 days
Hardiness zone
10b
Explore more for Jupiter Island, FL: full frost dates · planting calendar · Florida frost dates
Climate data from the nearest NOAA station, Juno Beach, Fl (9.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.