San Antonio, TX Weather & Growing Conditions
Tonight
75°F
Partly Cloudy
Partly cloudy, with a low around 75. South southeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 75°F | Partly Cloudy | 0 to 5 mph SSE | 0% |
| Sunday | 97°F | Mostly Sunny | 0 to 5 mph S | 0% |
| Sunday Night | 76°F | Partly Cloudy | 0 to 5 mph SSE | 5% |
| Monday | 97°F | Mostly Sunny | 0 to 5 mph SE | 7% |
| Monday Night | 76°F | Mostly Clear | 0 to 5 mph SE | 14% |
| Tuesday | 97°F | Sunny | 0 to 10 mph E | 9% |
| Tuesday Night | 77°F | Partly Cloudy | 0 to 10 mph ESE | 13% |
| Wednesday | 97°F | Mostly Sunny | 5 to 10 mph ENE | 10% |
| Wednesday Night | 77°F | Partly Cloudy | 0 to 10 mph E | 10% |
| Thursday | 97°F | Mostly Sunny | 5 to 10 mph ENE | 7% |
| Thursday Night | 76°F | Partly Cloudy | 5 to 10 mph E | 5% |
| Friday | 96°F | Mostly Sunny | 5 to 10 mph ENE | 3% |
| Friday Night | 75°F | Partly Cloudy | 5 to 10 mph ESE | 3% |
| Saturday | 96°F | Mostly Sunny | 5 mph ENE | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for San Antonio, TX
Last spring frost
Feb 18
First fall frost
Dec 9
Growing season
296 days
Hardiness zone
9a
Explore more for San Antonio, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, San Antonio/Seaworld, Tx (5.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.