Santa Anna, TX Weather & Growing Conditions
This Afternoon
101°F
Sunny
Sunny, with a high near 101. Heat index values as high as 106. East southeast wind 3 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 101°F | Sunny | 3 to 7 mph ESE | 2% |
| Tonight | 75°F | Mostly Clear | 1 to 12 mph ESE | 1% |
| Sunday | 101°F | Mostly Sunny | 0 to 6 mph ESE | 0% |
| Sunday Night | 76°F | Partly Cloudy | 1 to 9 mph ESE | 0% |
| Monday | 100°F | Sunny | 0 to 9 mph E | 14% |
| Monday Night | 76°F | Mostly Clear | 1 to 12 mph ESE | 14% |
| Tuesday | 99°F | Sunny then Chance Showers And Thunderstorms | 0 to 10 mph E | 27% |
| Tuesday Night | 76°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph NE | 27% |
| Wednesday | 98°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 10 mph ENE | 39% |
| Wednesday Night | 76°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph ENE | 39% |
| Thursday | 98°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 9 mph ENE | 45% |
| Thursday Night | 76°F | Chance Showers And Thunderstorms | 0 to 9 mph ENE | 45% |
| Friday | 98°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 9 mph ENE | 27% |
| Friday Night | 75°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 9 mph NE | 27% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Santa Anna, TX
Last spring frost
Jan 31
First fall frost
Dec 17
Growing season
321 days
Hardiness zone
9b
Explore more for Santa Anna, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Rio Grande City, Tx (24.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.