San Antonio, TX Weather & Growing Conditions
This Afternoon
87°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy. High near 87, with temperatures falling to around 83 in the afternoon. East southeast wind around 10 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 87°F | Slight Chance Showers And Thunderstorms | 10 mph ESE | 16% |
| Tonight | 76°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph SE | 16% |
| Saturday | 97°F | Sunny | 5 mph ESE | 1% |
| Saturday Night | 76°F | Mostly Clear | 5 to 10 mph SE | 1% |
| Sunday | 98°F | Mostly Sunny | 5 mph SSE | 0% |
| Sunday Night | 76°F | Partly Cloudy | 5 to 10 mph SE | 11% |
| Monday | 98°F | Mostly Sunny | 5 mph ESE | 11% |
| Monday Night | 77°F | Mostly Clear | 0 to 5 mph SE | 8% |
| Tuesday | 98°F | Sunny | 0 to 10 mph ENE | 11% |
| Tuesday Night | 77°F | Slight Chance Showers And Thunderstorms | 0 to 10 mph E | 18% |
| Wednesday | 98°F | Mostly Sunny | 5 to 10 mph ENE | 14% |
| Wednesday Night | 77°F | Partly Cloudy | 5 to 10 mph E | 11% |
| Thursday | 97°F | Mostly Sunny | 5 to 10 mph ENE | 9% |
| Thursday Night | 77°F | Partly Cloudy | 5 to 10 mph E | 9% |
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 (1.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.