Las Lomas, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Las Lomas, a community in Starr County, Texas.
This Afternoon
90°F
Mostly Sunny
Mostly sunny. High near 90, with temperatures falling to around 86 in the afternoon. North northwest wind around 10 mph, with gusts as high as 21 mph.
7-day forecast for Las Lomas
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 90°F | Mostly Sunny | 10 mph NNW | 4% |
| Tonight | 65°F | Partly Cloudy | 3 to 7 mph N | 3% |
| Wednesday | 85°F | Mostly Sunny | 3 mph NE | 1% |
| Wednesday Night | 67°F | Mostly Clear | 5 mph E | 2% |
| Thursday | 91°F | Mostly Sunny | 2 to 6 mph SE | 3% |
| Thursday Night | 70°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 1 to 6 mph NNE | 60% |
| Friday | 83°F | Chance Showers And Thunderstorms then Partly Sunny | 5 to 9 mph N | 34% |
| Friday Night | 63°F | Partly Cloudy then Slight Chance Rain Showers | 1 to 5 mph NNE | 20% |
| Saturday | 78°F | Chance Rain Showers | 7 mph N | 34% |
| Saturday Night | 60°F | Chance Rain Showers | 2 to 8 mph N | 29% |
| Sunday | 77°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 9 mph N | 15% |
| Sunday Night | 56°F | Partly Cloudy | 0 to 3 mph NNE | 12% |
| Monday | 79°F | Mostly Sunny | 5 mph NE | 4% |
| Monday Night | 57°F | Partly Cloudy | 2 mph E | 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 Nov 3, 2026.