Santa Anna, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Santa Anna, a community in Starr County, Texas.
Overnight
76°F
Partly Cloudy
Partly cloudy, with a low around 76. Wind around 0 mph.
7-day forecast for Santa Anna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 76°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 101°F | Mostly Sunny | 0 to 7 mph E | 2% |
| Saturday Night | 76°F | Mostly Clear | 0 to 12 mph ESE | 1% |
| Sunday | 101°F | Mostly Sunny | 0 to 6 mph E | 2% |
| Sunday Night | 76°F | Partly Cloudy | 1 to 9 mph ESE | 0% |
| Monday | 100°F | Sunny | 0 to 8 mph ESE | 14% |
| Monday Night | 76°F | Mostly Clear | 0 to 10 mph E | 14% |
| Tuesday | 99°F | Sunny then Chance Showers And Thunderstorms | 0 to 10 mph ENE | 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 | 38% |
| Wednesday Night | 76°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph ENE | 38% |
| Thursday | 98°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 9 mph ENE | 45% |
| Thursday Night | 75°F | Chance Showers And Thunderstorms | 0 to 9 mph ENE | 45% |
| Friday | 98°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 1 to 9 mph ENE | 27% |
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
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Benjamin Perez
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Campo Verde
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East Alto Bonito
El Brazil
El Castillo
El Cenizo
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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 Sep 19, 2026.