Alto Bonito Heights, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alto Bonito Heights, a community in Starr County, Texas.
Today
91°F
Mostly Sunny
Mostly sunny. High near 91, with temperatures falling to around 86 in the afternoon. West northwest wind 6 to 10 mph.
7-day forecast for Alto Bonito Heights
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Mostly Sunny | 6 to 10 mph WNW | 5% |
| Tonight | 66°F | Partly Cloudy | 3 to 8 mph N | 6% |
| Wednesday | 85°F | Mostly Sunny | 5 mph NE | 1% |
| Wednesday Night | 68°F | Partly Cloudy | 5 mph E | 2% |
| Thursday | 93°F | Mostly Sunny | 3 to 8 mph SE | 3% |
| Thursday Night | 72°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph E | 38% |
| Friday | 83°F | Chance Showers And Thunderstorms | 6 to 9 mph N | 28% |
| Friday Night | 65°F | Chance Showers And Thunderstorms | 2 to 6 mph NNE | 25% |
| Saturday | 78°F | Chance Showers And Thunderstorms | 6 to 9 mph N | 45% |
| Saturday Night | 60°F | Chance Rain Showers | 3 to 9 mph N | 42% |
| Sunday | 76°F | Chance Rain Showers then Mostly Sunny | 7 to 13 mph NNW | 28% |
| Sunday Night | 56°F | Partly Cloudy | 1 to 6 mph NNW | 10% |
| Monday | 79°F | Sunny | 6 mph N | 5% |
| Monday Night | 56°F | Mostly Clear | 3 mph ENE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Alto Bonito Heights (26.316, -98.641). Updated through the day.
Growing snapshot for Alto Bonito Heights
Last spring frost
Jan 31
First fall frost
Dec 17
Growing season
321 days
Hardiness zone
10a
More local growing data for Alto Bonito Heights: nearby ZIP 78548 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Rio Grande City, Tx (11.9 mi from Alto Bonito Heights). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.