Las Lomas, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Las Lomas, a community in Starr County, Texas.
Today
102°F
Sunny
Sunny, with a high near 102. Heat index values as high as 111. Southeast wind 8 to 13 mph, with gusts as high as 25 mph.
7-day forecast for Las Lomas
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 102°F | Sunny | 8 to 13 mph SE | 1% |
| Tonight | 80°F | Partly Cloudy | 8 to 13 mph SE | 2% |
| Wednesday | 102°F | Mostly Sunny | 8 to 12 mph SE | 1% |
| Wednesday Night | 79°F | Mostly Clear | 8 to 12 mph SE | 0% |
| Thursday | 102°F | Sunny | 7 to 12 mph SE | 5% |
| Thursday Night | 78°F | Mostly Clear | 6 to 13 mph SE | 5% |
| Friday | 101°F | Sunny | 6 to 10 mph SE | 3% |
| Friday Night | 78°F | Mostly Clear | 5 to 12 mph SE | 3% |
| Saturday | 100°F | Sunny | 3 to 8 mph ESE | 3% |
| Saturday Night | 78°F | Mostly Clear | 5 to 10 mph SE | 3% |
| Sunday | 101°F | Sunny | 3 to 9 mph SE | 4% |
| Sunday Night | 79°F | Mostly Clear | 6 to 10 mph SE | 4% |
| Monday | 102°F | Sunny | 6 to 12 mph SE | 2% |
| Monday Night | 80°F | Mostly Clear | 13 mph SE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Las Lomas (26.364, -98.775). Updated through the day.
Growing snapshot for Las Lomas
Last spring frost
Jan 31
First fall frost
Dec 17
Growing season
321 days
Hardiness zone
9b
More local growing data for Las Lomas: 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 Las Lomas). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.