San Antonio, TX Weather & Growing Conditions
Today
95°F
Sunny
Sunny, with a high near 95. Heat index values as high as 100. South southeast wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 95°F | Sunny | 5 to 10 mph SSE | 6% |
| Tonight | 74°F | Mostly Clear | 5 to 10 mph SSE | 6% |
| Wednesday | 95°F | Mostly Sunny | 5 to 10 mph SSE | 1% |
| Wednesday Night | 74°F | Partly Cloudy | 5 to 10 mph SSE | 1% |
| Thursday | 96°F | Sunny | 5 mph SSE | 3% |
| Thursday Night | 73°F | Partly Cloudy | 5 to 10 mph SSE | 3% |
| Friday | 94°F | Mostly Sunny | 5 mph SE | 1% |
| Friday Night | 74°F | Partly Cloudy | 5 to 10 mph SE | 3% |
| Saturday | 93°F | Mostly Sunny | 0 to 5 mph SSE | 3% |
| Saturday Night | 74°F | Mostly Clear | 5 to 10 mph SE | 3% |
| Sunday | 93°F | Sunny | 0 to 10 mph SSE | 3% |
| Sunday Night | 74°F | Mostly Clear | 5 to 10 mph SSE | 3% |
| Monday | 94°F | Mostly Sunny | 5 to 10 mph SSE | 4% |
| Monday Night | 74°F | Mostly Clear | 10 to 15 mph SSE | 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 Aug 4, 2026.