Santa Anna, TX Weather & Growing Conditions
Today
101°F
Sunny
Sunny, with a high near 101. Heat index values as high as 107. Southeast wind 12 to 15 mph, with gusts as high as 24 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 101°F | Sunny | 12 to 15 mph SE | 1% |
| Tonight | 79°F | Mostly Clear | 8 to 14 mph SE | 2% |
| Wednesday | 102°F | Mostly Sunny | 8 to 13 mph SE | 2% |
| Wednesday Night | 78°F | Mostly Clear | 8 to 13 mph SE | 0% |
| Thursday | 102°F | Sunny | 7 to 12 mph SE | 8% |
| Thursday Night | 78°F | Mostly Clear | 6 to 13 mph SE | 8% |
| Friday | 101°F | Sunny | 5 to 12 mph SE | 9% |
| Friday Night | 77°F | Mostly Clear | 2 to 12 mph SE | 9% |
| Saturday | 100°F | Sunny | 2 to 9 mph ESE | 3% |
| Saturday Night | 77°F | Mostly Clear | 3 to 12 mph SE | 3% |
| Sunday | 100°F | Sunny | 2 to 10 mph SE | 5% |
| Sunday Night | 78°F | Mostly Clear | 5 to 12 mph SE | 5% |
| Monday | 102°F | Sunny | 5 to 13 mph SE | 2% |
| Monday Night | 78°F | Mostly Clear | 14 mph SE | 2% |
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 Aug 4, 2026.