Santa Anna, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Santa Anna, a community in Starr County, Texas.
Today
101°F
Sunny
Sunny, with a high near 101. Heat index values as high as 106. Southeast wind 10 to 15 mph, with gusts as high as 24 mph.
7-day forecast for Santa Anna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 101°F | Sunny | 10 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 | 3% |
| Wednesday Night | 78°F | Mostly Clear | 6 to 13 mph SE | 0% |
| Thursday | 102°F | Sunny | 6 to 12 mph SE | 8% |
| Thursday Night | 78°F | Mostly Clear | 3 to 13 mph SE | 8% |
| Friday | 101°F | Sunny | 3 to 12 mph SE | 10% |
| Friday Night | 76°F | Mostly Clear | 1 to 12 mph SE | 10% |
| Saturday | 100°F | Sunny | 1 to 9 mph ESE | 3% |
| Saturday Night | 77°F | Mostly Clear | 1 to 12 mph SE | 3% |
| Sunday | 100°F | Sunny | 1 to 10 mph SE | 5% |
| Sunday Night | 78°F | Mostly Clear | 5 to 12 mph SE | 5% |
| Monday | 101°F | Sunny | 5 to 13 mph SE | 2% |
| Monday Night | 78°F | Mostly Clear | 10 to 14 mph SE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Santa Anna (26.669, -98.558). Updated through the day.
Growing snapshot for Santa Anna
Last spring frost
Jan 31
First fall frost
Dec 17
Growing season
321 days
Hardiness zone
9b
More local growing data for Santa Anna: nearby ZIP 78591 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Rio Grande City, Tx (24.2 mi from Santa Anna). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.