Key Largo, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Key Largo, a community in Monroe County, Florida.
Today
92°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 92. Southeast wind 0 to 5 mph. Chance of precipitation is 50%.
7-day forecast for Key Largo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 46% |
| Tonight | 80°F | Chance Showers And Thunderstorms | 5 to 10 mph E | 46% |
| Wednesday | 91°F | Showers And Thunderstorms Likely | 5 to 10 mph E | 60% |
| Wednesday Night | 81°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 10 to 15 mph E | 60% |
| Thursday | 91°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 51% |
| Thursday Night | 80°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 to 15 mph E | 60% |
| Friday | 91°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 10 to 15 mph E | 60% |
| Friday Night | 83°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 50% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 10 to 15 mph SE | 50% |
| Saturday Night | 83°F | Chance Showers And Thunderstorms | 10 mph E | 28% |
| Sunday | 89°F | Slight Chance Showers And Thunderstorms | 10 mph E | 23% |
| Sunday Night | 83°F | Slight Chance Showers And Thunderstorms | 10 mph E | 23% |
| Monday | 89°F | Slight Chance Showers And Thunderstorms | 10 mph E | 22% |
| Monday Night | 83°F | Slight Chance Showers And Thunderstorms | 10 mph E | 18% |
Forecast source: National Weather Service (api.weather.gov) for Key Largo (25.123, -80.412). Updated through the day.
Growing snapshot for Key Largo
Growing season
365 days
Hardiness zone
11a
More local growing data for Key Largo: nearby ZIP 33037 weather · frost dates · planting calendar · Florida frost dates
Nearby towns & communities
Big Coppitt Key
Big Pine Key
Cudjoe Key
Duck Key
Islamorada, Village of Islands
Key Colony Beach
Key West
Layton
Marathon
North Key Largo
Stock Island
Tavernier
Climate data from the nearest NOAA station, John Pennekamp Sp, Fl (4.6 mi from Key Largo). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.