Longboat Key, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Longboat Key, a town in Sarasota County, Florida.
Today
87°F
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms. Partly sunny, with a high near 87. Southwest wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Longboat Key
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Scattered Showers And Thunderstorms | 10 mph SW | 48% |
| Tonight | 78°F | Scattered Showers And Thunderstorms | 9 mph S | 30% |
| Wednesday | 88°F | Scattered Showers And Thunderstorms | 8 mph SSE | 35% |
| Wednesday Night | 77°F | Scattered Showers And Thunderstorms then Mostly Cloudy | 7 to 12 mph E | 50% |
| Thursday | 90°F | Partly Sunny then Widespread Showers And Thunderstorms | 8 to 12 mph ENE | 75% |
| Thursday Night | 77°F | Widespread Showers And Thunderstorms then Mostly Cloudy | 12 to 15 mph ENE | 75% |
| Friday | 89°F | Mostly Sunny then Widespread Showers And Thunderstorms | 12 to 15 mph ENE | 76% |
| Friday Night | 77°F | Widespread Showers And Thunderstorms then Scattered Showers And Thunderstorms | 14 mph E | 76% |
| Saturday | 88°F | Isolated Showers And Thunderstorms | 7 to 14 mph SE | 65% |
| Saturday Night | 78°F | Chance Showers And Thunderstorms then Scattered Showers And Thunderstorms | 7 to 12 mph ESE | 65% |
| Sunday | 89°F | Mostly Sunny then Scattered Showers And Thunderstorms | 7 to 12 mph S | 48% |
| Sunday Night | 79°F | Scattered Showers And Thunderstorms | 7 to 10 mph NE | 48% |
| Monday | 89°F | Mostly Sunny then Scattered Showers And Thunderstorms | 7 to 10 mph S | 34% |
| Monday Night | 79°F | Scattered Showers And Thunderstorms then Partly Cloudy | 9 mph NE | 34% |
Forecast source: National Weather Service (api.weather.gov) for Longboat Key (27.400, -82.644). Updated through the day.
Growing snapshot for Longboat Key
Last spring frost
Jan 15
First fall frost
Jan 10
Growing season
365 days
Hardiness zone
10b
More local growing data for Longboat Key: nearby ZIP 34228 weather · frost dates · planting calendar · Florida frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Sarasota Bradenton Ap, Fl (5.3 mi from Longboat Key). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.