Santa Anna, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Santa Anna, a community in Starr County, Texas.
This Afternoon
90°F
Mostly Sunny
Mostly sunny. High near 90, with temperatures falling to around 84 in the afternoon. Northwest wind 3 to 10 mph.
7-day forecast for Santa Anna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 90°F | Mostly Sunny | 3 to 10 mph NW | 13% |
| Tonight | 62°F | Partly Cloudy | 3 to 8 mph N | 3% |
| Wednesday | 83°F | Sunny | 6 mph NE | 0% |
| Wednesday Night | 64°F | Mostly Clear | 3 mph E | 7% |
| Thursday | 89°F | Mostly Sunny | 1 to 6 mph ESE | 13% |
| Thursday Night | 68°F | Showers And Thunderstorms Likely | 1 to 8 mph NNE | 68% |
| Friday | 81°F | Chance Showers And Thunderstorms then Mostly Sunny | 6 to 12 mph N | 28% |
| Friday Night | 60°F | Partly Cloudy | 0 to 6 mph NNE | 14% |
| Saturday | 77°F | Chance Rain Showers | 6 to 9 mph NNE | 37% |
| Saturday Night | 58°F | Slight Chance Rain Showers | 3 to 12 mph N | 23% |
| Sunday | 75°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 12 mph N | 15% |
| Sunday Night | 54°F | Partly Cloudy | 2 mph N | 10% |
| Monday | 77°F | Mostly Sunny | 1 to 5 mph NNE | 6% |
| Monday Night | 55°F | Partly Cloudy | 1 mph NNE | 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
Nearby towns & communities
Airport Heights
Alto Bonito Heights
Amada Acres
Anacua
B and E
Barrera
Benjamin Perez
Buena Vista
Camargito
Campo Verde
Casa Blanca
Casas
Chaparrito
Chapeno
Delmita
E. Lopez
East Alto Bonito
El Brazil
El Castillo
El Cenizo
El Chaparral
El Mesquite
El Quiote
El Rancho Vela
El Refugio
El Socio
Escobares
Eugenio Saenz
Evergreen
Falcon Heights
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 Nov 3, 2026.