San Antonio, TX Weather & Growing Conditions
Overnight
51°F
Mostly Clear
Mostly clear, with a low around 51. North wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Mostly Clear | 5 mph N | 0% |
| Wednesday | 74°F | Sunny | 0 to 5 mph NE | 0% |
| Wednesday Night | 51°F | Mostly Clear | 0 to 5 mph SE | 0% |
| Thursday | 78°F | Mostly Sunny | 0 to 5 mph SSW | 2% |
| Thursday Night | 55°F | Partly Cloudy | 0 to 20 mph NNW | 2% |
| Friday | 72°F | Sunny | 5 to 15 mph N | 0% |
| Friday Night | 51°F | Partly Cloudy | 5 to 10 mph NNE | 3% |
| Saturday | 68°F | Slight Chance Rain Showers | 5 to 10 mph NNE | 21% |
| Saturday Night | 50°F | Mostly Cloudy | 5 to 10 mph N | 14% |
| Sunday | 69°F | Mostly Sunny | 5 to 10 mph NNE | 8% |
| Sunday Night | 48°F | Mostly Clear | 0 to 5 mph NNE | 5% |
| Monday | 70°F | Sunny | 5 mph E | 4% |
| Monday Night | 49°F | Mostly Clear | 0 to 5 mph ESE | 2% |
| Tuesday | 71°F | Mostly Sunny | 5 mph SE | 4% |
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
8b
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 (12.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.