West Alto Bonito, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Alto Bonito, a community in Starr County, Texas.
Today
101°F
Sunny
Sunny, with a high near 101. Heat index values as high as 109. East southeast wind 2 to 6 mph.
7-day forecast for West Alto Bonito
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 101°F | Sunny | 2 to 6 mph ESE | 1% |
| Tonight | 78°F | Mostly Clear | 2 to 10 mph ESE | 1% |
| Sunday | 101°F | Mostly Sunny | 2 to 6 mph ESE | 1% |
| Sunday Night | 78°F | Partly Cloudy | 2 to 8 mph ESE | 1% |
| Monday | 101°F | Sunny then Slight Chance Showers And Thunderstorms | 1 to 9 mph ESE | 15% |
| Monday Night | 78°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 1 to 12 mph ESE | 15% |
| Tuesday | 99°F | Sunny then Chance Showers And Thunderstorms | 1 to 9 mph E | 35% |
| Tuesday Night | 78°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph E | 35% |
| Wednesday | 98°F | Chance Showers And Thunderstorms | 0 to 9 mph ENE | 47% |
| Wednesday Night | 78°F | Chance Showers And Thunderstorms | 0 to 9 mph NE | 47% |
| Thursday | 98°F | Chance Rain Showers | 1 to 8 mph ENE | 51% |
| Thursday Night | 77°F | Chance Showers And Thunderstorms | 0 to 8 mph E | 51% |
| Friday | 98°F | Chance Rain Showers | 2 to 9 mph ENE | 33% |
| Friday Night | 76°F | Chance Showers And Thunderstorms | 1 to 9 mph ENE | 33% |
Forecast source: National Weather Service (api.weather.gov) for West Alto Bonito (26.314, -98.663). Updated through the day.
Growing snapshot for West Alto Bonito
Last spring frost
Jan 31
First fall frost
Dec 17
Growing season
321 days
Hardiness zone
9b
More local growing data for West Alto Bonito: 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 West Alto Bonito). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.