Longboat Key, FL Weather & Growing Conditions
This Afternoon
90°F
Isolated Showers And Thunderstorms
Isolated showers and thunderstorms between 3pm and 4pm, then scattered showers and thunderstorms. Partly sunny. High near 90, with temperatures falling to around 86 in the afternoon. Heat index values as high as 98. North northeast wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 90°F | Isolated Showers And Thunderstorms | 6 mph NNE | 45% |
| Tonight | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 7 mph ENE | 60% |
| Sunday | 89°F | Isolated Showers And Thunderstorms | 7 mph N | 45% |
| Sunday Night | 74°F | Scattered Showers And Thunderstorms then Isolated Showers And Thunderstorms | 6 mph ENE | 46% |
| Monday | 89°F | Isolated Showers And Thunderstorms | 7 mph SSE | 75% |
| Monday Night | 74°F | Widespread Showers And Thunderstorms | 7 mph ENE | 75% |
| Tuesday | 89°F | Widespread Showers And Thunderstorms | 7 mph S | 75% |
| Tuesday Night | 76°F | Widespread Showers And Thunderstorms then Scattered Showers And Thunderstorms | 7 mph ESE | 75% |
| Wednesday | 89°F | Scattered Showers And Thunderstorms | 8 mph NE | 68% |
| Wednesday Night | 76°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 68% |
| Thursday | 90°F | Scattered Showers And Thunderstorms | 9 to 13 mph NE | 47% |
| Thursday Night | 76°F | Scattered Showers And Thunderstorms | 13 mph NE | 47% |
| Friday | 89°F | Scattered Showers And Thunderstorms | 9 to 14 mph NNE | 39% |
| Friday Night | 75°F | Scattered Showers And Thunderstorms | 13 mph NE | 39% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Longboat Key, FL
Last spring frost
Jan 15
First fall frost
Jan 10
Growing season
365 days
Hardiness zone
10a
Explore more for Longboat Key, FL: full frost dates · planting calendar · Florida frost dates
Climate data from the nearest NOAA station, Sarasota Bradenton Ap, Fl (5.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.