San Antonio, TX Weather & Growing Conditions
This Afternoon
95°F
Sunny
Sunny, with a high near 95. Heat index values as high as 100. South southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 95°F | Sunny | 5 mph SSE | 2% |
| Tonight | 72°F | Mostly Clear | 5 mph SSE | 1% |
| Sunday | 96°F | Mostly Sunny | 0 to 5 mph S | 1% |
| Sunday Night | 73°F | Partly Cloudy | 5 mph SSE | 11% |
| Monday | 96°F | Sunny | 0 to 5 mph SE | 10% |
| Monday Night | 73°F | Mostly Clear | 0 to 5 mph SE | 10% |
| Tuesday | 95°F | Slight Chance Rain Showers | 0 to 5 mph ENE | 15% |
| Tuesday Night | 73°F | Partly Cloudy then Slight Chance Rain Showers | 5 to 10 mph E | 19% |
| Wednesday | 95°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 10 mph ENE | 19% |
| Wednesday Night | 72°F | Partly Cloudy | 5 to 10 mph E | 11% |
| Thursday | 94°F | Mostly Sunny | 5 to 10 mph ENE | 10% |
| Thursday Night | 71°F | Partly Cloudy | 5 to 10 mph E | 5% |
| Friday | 94°F | Mostly Sunny | 5 to 10 mph ENE | 5% |
| Friday Night | 71°F | Partly Cloudy | 5 mph E | 3% |
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 Sep 19, 2026.