San Antonio, TX Weather & Growing Conditions
Tonight
55°F
Mostly Clear
Mostly clear, with a low around 55. North wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Mostly Clear | 5 mph N | 0% |
| Wednesday | 75°F | Sunny | 0 to 5 mph ENE | 0% |
| Wednesday Night | 55°F | Mostly Clear | 0 mph | 0% |
| Thursday | 79°F | Mostly Sunny | 0 to 5 mph SSE | 2% |
| Thursday Night | 59°F | Partly Cloudy | 0 to 15 mph N | 3% |
| Friday | 74°F | Sunny | 5 to 15 mph N | 0% |
| Friday Night | 56°F | Partly Cloudy | 5 to 10 mph NNE | 3% |
| Saturday | 70°F | Slight Chance Rain Showers | 5 to 10 mph NNE | 19% |
| Saturday Night | 54°F | Mostly Cloudy | 5 to 10 mph NNE | 13% |
| Sunday | 70°F | Mostly Sunny | 5 to 10 mph NNE | 11% |
| Sunday Night | 51°F | Mostly Clear | 0 to 5 mph N | 5% |
| Monday | 71°F | Sunny | 5 mph ENE | 4% |
| Monday Night | 52°F | Mostly Clear | 0 to 5 mph E | 2% |
| Tuesday | 73°F | Mostly Sunny | 0 to 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 25
First fall frost
Nov 28
Growing season
277 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 Incarnate Word, Tx (3.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.