La Casita, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for La Casita, a community in Starr County, Texas.
This Afternoon
99°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a high near 99. Heat index values as high as 112. East northeast wind around 8 mph. Chance of precipitation is 30%.
7-day forecast for La Casita
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 99°F | Chance Showers And Thunderstorms | 8 mph ENE | 34% |
| Tonight | 78°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 1 to 9 mph ESE | 21% |
| Saturday | 102°F | Sunny | 1 to 6 mph ESE | 2% |
| Saturday Night | 78°F | Mostly Clear | 2 to 8 mph ESE | 3% |
| Sunday | 103°F | Sunny | 2 to 6 mph ESE | 2% |
| Sunday Night | 78°F | Partly Cloudy | 3 to 8 mph SE | 2% |
| Monday | 103°F | Sunny | 2 to 8 mph ESE | 8% |
| Monday Night | 78°F | Mostly Clear | 1 to 10 mph ESE | 8% |
| Tuesday | 101°F | Sunny then Chance Showers And Thunderstorms | 1 to 9 mph ESE | 30% |
| Tuesday Night | 78°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph ESE | 30% |
| Wednesday | 100°F | Chance Showers And Thunderstorms | 0 to 10 mph E | 41% |
| Wednesday Night | 78°F | Chance Showers And Thunderstorms | 0 to 10 mph E | 41% |
| Thursday | 100°F | Chance Showers And Thunderstorms | 0 to 8 mph ENE | 46% |
| Thursday Night | 77°F | Chance Showers And Thunderstorms | 0 to 8 mph ENE | 46% |
Forecast source: National Weather Service (api.weather.gov) for La Casita (26.337, -98.734). Updated through the day.
Growing snapshot for La Casita
Last spring frost
Jan 31
First fall frost
Dec 17
Growing season
321 days
Hardiness zone
9b
More local growing data for La Casita: nearby ZIP 78547 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Rio Grande City, Tx (8.7 mi from La Casita). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.