San Antonio, TX Weather & Growing Conditions
Overnight
56°F
Clear
Clear, with a low around 56. North wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Clear | 5 mph N | 0% |
| Wednesday | 76°F | Sunny | 0 to 5 mph NE | 0% |
| Wednesday Night | 55°F | Clear | 0 mph | 0% |
| Thursday | 80°F | Sunny | 0 to 5 mph ESE | 0% |
| Thursday Night | 61°F | Partly Cloudy | 0 to 15 mph NNE | 2% |
| Friday | 75°F | Sunny | 10 to 15 mph N | 0% |
| Friday Night | 56°F | Partly Cloudy | 5 to 15 mph NNE | 0% |
| Saturday | 69°F | Partly Sunny then Slight Chance Rain Showers | 10 mph NNE | 17% |
| Saturday Night | 53°F | Chance Rain Showers | 5 to 15 mph NNE | 29% |
| Sunday | 67°F | Slight Chance Rain Showers then Partly Sunny | 5 to 15 mph NNE | 15% |
| Sunday Night | 50°F | Partly Cloudy | 0 to 5 mph NNE | 6% |
| Monday | 69°F | Sunny | 0 to 5 mph ENE | 5% |
| Monday Night | 50°F | Partly Cloudy | 0 mph | 3% |
| Tuesday | 71°F | Mostly Sunny | 0 to 5 mph ESE | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for San Antonio, TX
Last spring frost
Feb 20
First fall frost
Dec 3
Growing season
291 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 Stinson Ap, Tx (0.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.