Key West, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Key West, a city in Monroe County, Florida.
Overnight
79°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 79. East wind around 5 mph. Chance of precipitation is 60%.
7-day forecast for Key West
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 79°F | Showers And Thunderstorms Likely | 5 mph E | 64% |
| Saturday | 90°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph E | 64% |
| Saturday Night | 78°F | Chance Showers And Thunderstorms | 5 mph SE | 52% |
| Sunday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 53% |
| Sunday Night | 79°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph S | 67% |
| Monday | 90°F | Showers And Thunderstorms Likely | 5 mph SW | 68% |
| Monday Night | 79°F | Showers And Thunderstorms Likely | 5 to 10 mph S | 68% |
| Tuesday | 90°F | Showers And Thunderstorms Likely | 5 mph S | 67% |
| Tuesday Night | 80°F | Showers And Thunderstorms Likely | 5 mph SE | 70% |
| Wednesday | 90°F | Showers And Thunderstorms Likely | 5 mph SE | 72% |
| Wednesday Night | 79°F | Showers And Thunderstorms Likely | 5 mph SE | 72% |
| Thursday | 90°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph E | 60% |
| Thursday Night | 81°F | Chance Showers And Thunderstorms | 5 mph E | 52% |
| Friday | 90°F | Chance Showers And Thunderstorms | 5 mph E | 50% |
Forecast source: National Weather Service (api.weather.gov) for Key West (24.565, -81.776). Updated through the day.
Growing snapshot for Key West
Growing season
365 days
Hardiness zone
11b
More local growing data for Key West: nearby ZIP 33040 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 Largo
Layton
Marathon
North Key Largo
Stock Island
Tavernier
Climate data from the nearest NOAA station, Key W Wfo, Fl (8.4 mi from Key West). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.