Siesta Key, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Siesta Key, a community in Sarasota County, Florida.
This Afternoon
85°F
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms. Mostly cloudy. High near 85, with temperatures falling to around 78 in the afternoon. East southeast wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Siesta Key
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Scattered Showers And Thunderstorms | 10 mph ESE | 46% |
| Tonight | 70°F | Scattered Showers And Thunderstorms then Partly Cloudy | 9 mph ESE | 33% |
| Wednesday | 85°F | Mostly Sunny then Isolated Showers And Thunderstorms | 3 to 8 mph SE | 33% |
| Wednesday Night | 70°F | Scattered Showers And Thunderstorms | 5 mph NE | 29% |
| Thursday | 85°F | Sunny | 6 mph SW | 4% |
| Thursday Night | 69°F | Mostly Clear | 5 mph NNE | 4% |
| Friday | 84°F | Sunny | 2 to 9 mph NNW | 1% |
| Friday Night | 69°F | Mostly Clear | 7 mph NNW | 1% |
| Saturday | 82°F | Sunny | 3 to 9 mph NNW | 1% |
| Saturday Night | 65°F | Mostly Clear | 8 mph N | 4% |
| Sunday | 81°F | Sunny | 6 to 10 mph NNW | 11% |
| Sunday Night | 64°F | Partly Cloudy then Isolated Rain Showers | 10 mph N | 16% |
| Monday | 80°F | Isolated Rain Showers | 10 to 14 mph N | 16% |
| Monday Night | 61°F | Isolated Rain Showers | 12 mph NNE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Siesta Key (27.275, -82.549). Updated through the day.
Growing snapshot for Siesta Key
Last spring frost
Jan 15
First fall frost
Jan 10
Growing season
365 days
Hardiness zone
10a
More local growing data for Siesta Key: nearby ZIP 34242 weather · frost dates · planting calendar · Florida frost dates
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Climate data from the nearest NOAA station, Sarasota Bradenton Ap, Fl (9.8 mi from Siesta Key). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.