San Antonio, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for San Antonio, a city in Pasco County, Florida.
This Afternoon
91°F
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms. Mostly sunny. High near 91, with temperatures falling to around 87 in the afternoon. Heat index values as high as 100. East northeast wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for San Antonio
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 91°F | Scattered Showers And Thunderstorms | 13 mph ENE | 26% |
| Tonight | 71°F | Scattered Showers And Thunderstorms then Mostly Clear | 2 to 9 mph ENE | 27% |
| Saturday | 91°F | Mostly Sunny then Scattered Showers And Thunderstorms | 3 to 7 mph NE | 46% |
| Saturday Night | 71°F | Scattered Showers And Thunderstorms then Partly Cloudy | 1 to 6 mph ENE | 49% |
| Sunday | 90°F | Mostly Sunny then Showers And Thunderstorms | 1 to 5 mph NE | 79% |
| Sunday Night | 72°F | Showers And Thunderstorms then Partly Cloudy | 1 to 5 mph ENE | 79% |
| Monday | 90°F | Partly Sunny then Showers And Thunderstorms | 5 mph E | 81% |
| Monday Night | 72°F | Showers And Thunderstorms then Scattered Showers And Thunderstorms | 5 mph E | 81% |
| Tuesday | 90°F | Chance Showers And Thunderstorms | 5 mph ESE | 69% |
| Tuesday Night | 73°F | Chance Showers And Thunderstorms | 3 mph E | 69% |
| Wednesday | 90°F | Isolated Showers And Thunderstorms | 2 to 6 mph E | 70% |
| Wednesday Night | 73°F | Chance Showers And Thunderstorms then Isolated Showers And Thunderstorms | 6 mph ENE | 70% |
| Thursday | 90°F | Mostly Sunny then Scattered Showers And Thunderstorms | 7 to 10 mph NNE | 54% |
| Thursday Night | 72°F | Scattered Showers And Thunderstorms | 6 to 9 mph NE | 54% |
Forecast source: National Weather Service (api.weather.gov) for San Antonio (28.340, -82.279). Updated through the day.
Growing snapshot for San Antonio
Last spring frost
Jan 31
First fall frost
Jan 8
Growing season
336 days
Hardiness zone
9b
More local growing data for San Antonio: nearby ZIP 33574 weather · frost dates · planting calendar · Florida frost dates
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Climate data from the nearest NOAA station, Saint Leo, Fl (0.2 mi from San Antonio). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.