Big Coppitt Key, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Big Coppitt Key, a community in Monroe County, Florida.
Tonight
80°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 80. Southeast wind around 5 mph. Chance of precipitation is 60%.
7-day forecast for Big Coppitt Key
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 80°F | Showers And Thunderstorms Likely | 5 mph SE | 59% |
| Sunday | 88°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 59% |
| Sunday Night | 80°F | Showers And Thunderstorms Likely | 5 mph S | 58% |
| Monday | 88°F | Showers And Thunderstorms Likely | 5 mph SW | 62% |
| Monday Night | 81°F | Showers And Thunderstorms Likely | 5 to 10 mph S | 62% |
| Tuesday | 89°F | Showers And Thunderstorms Likely | 5 mph S | 67% |
| Tuesday Night | 81°F | Showers And Thunderstorms | 5 to 10 mph SE | 77% |
| Wednesday | 89°F | Showers And Thunderstorms | 10 mph SE | 78% |
| Wednesday Night | 81°F | Showers And Thunderstorms | 5 to 10 mph SE | 78% |
| Thursday | 89°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 71% |
| Thursday Night | 81°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 to 10 mph SE | 63% |
| Friday | 89°F | Chance Showers And Thunderstorms | 5 to 10 mph E | 53% |
| Friday Night | 81°F | Chance Showers And Thunderstorms | 5 mph E | 52% |
| Saturday | 89°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph NE | 59% |
Forecast source: National Weather Service (api.weather.gov) for Big Coppitt Key (24.580, -81.652). Updated through the day.
Growing snapshot for Big Coppitt Key
Growing season
365 days
Hardiness zone
11b
More local growing data for Big Coppitt Key: nearby ZIP 33042 weather · frost dates · planting calendar · Florida frost dates
Nearby towns & communities
Big Pine Key
Cudjoe Key
Duck Key
Islamorada, Village of Islands
Key Colony Beach
Key Largo
Key West
Layton
Marathon
North Key Largo
Stock Island
Tavernier
Climate data from the nearest NOAA station, Key West Nas, Fl (12.7 mi from Big Coppitt Key). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.