South Alamo, TX Weather & Growing Conditions
Tonight
78°F
Mostly Clear
Mostly clear, with a low around 78. East wind 1 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 78°F | Mostly Clear | 1 to 9 mph E | 2% |
| Saturday | 99°F | Sunny | 1 to 9 mph ENE | 9% |
| Saturday Night | 77°F | Mostly Clear | 2 to 13 mph ESE | 2% |
| Sunday | 99°F | Sunny | 2 to 9 mph ESE | 11% |
| Sunday Night | 78°F | Mostly Clear | 3 to 13 mph SE | 11% |
| Monday | 99°F | Sunny then Slight Chance Showers And Thunderstorms | 2 to 10 mph SE | 22% |
| Monday Night | 78°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 1 to 13 mph ESE | 22% |
| Tuesday | 98°F | Sunny then Chance Showers And Thunderstorms | 2 to 12 mph E | 45% |
| Tuesday Night | 78°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 13 mph ENE | 45% |
| Wednesday | 96°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 1 to 13 mph ENE | 43% |
| Wednesday Night | 78°F | Chance Showers And Thunderstorms then Mostly Clear | 1 to 13 mph ENE | 43% |
| Thursday | 96°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 3 to 12 mph NE | 47% |
| Thursday Night | 77°F | Chance Showers And Thunderstorms | 2 to 12 mph ENE | 47% |
| Friday | 95°F | Chance Rain Showers then Chance Showers And Thunderstorms | 3 to 10 mph NNE | 42% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for South Alamo, TX
Last spring frost
Jan 9
First fall frost
Jan 3
Growing season
365 days
Hardiness zone
10a
Explore more for South Alamo, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Mcallen Miller Intl Ap, Tx (8.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.