Santa Rosa, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Santa Rosa, a community in Starr County, Texas.
Overnight
79°F
Mostly Clear
Mostly clear, with a low around 79. Southeast wind around 7 mph.
7-day forecast for Santa Rosa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 79°F | Mostly Clear | 7 mph SE | 1% |
| Tuesday | 103°F | Sunny | 7 to 13 mph SE | 1% |
| Tuesday Night | 80°F | Partly Cloudy | 8 to 14 mph SE | 3% |
| Wednesday | 102°F | Mostly Sunny | 8 to 12 mph SE | 1% |
| Wednesday Night | 80°F | Mostly Clear | 8 to 13 mph SE | 0% |
| Thursday | 103°F | Sunny | 7 to 12 mph SE | 5% |
| Thursday Night | 79°F | Mostly Clear | 6 to 13 mph SE | 5% |
| Friday | 102°F | Sunny | 5 to 10 mph SE | 3% |
| Friday Night | 78°F | Mostly Clear | 5 to 12 mph SE | 3% |
| Saturday | 101°F | Sunny | 3 to 9 mph ESE | 3% |
| Saturday Night | 78°F | Mostly Clear | 5 to 12 mph SE | 3% |
| Sunday | 102°F | Sunny | 3 to 9 mph SE | 4% |
| Sunday Night | 79°F | Mostly Clear | 6 to 12 mph SE | 4% |
| Monday | 103°F | Sunny | 6 to 13 mph SE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Santa Rosa (26.349, -98.770). Updated through the day.
Growing snapshot for Santa Rosa
Last spring frost
Jan 31
First fall frost
Dec 17
Growing season
321 days
Hardiness zone
9b
More local growing data for Santa Rosa: nearby ZIP 78547 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Airport Heights
Alto Bonito Heights
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Campo Verde
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Casas
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El Castillo
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Eugenio Saenz
Evergreen
Falcon Heights
Climate data from the nearest NOAA station, Rio Grande City, Tx (8.7 mi from Santa Rosa). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.