San Ygnacio, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for San Ygnacio, a community in Zapata County, Texas.
Today
82°F
Sunny
Sunny, with a high near 82. East northeast wind around 1 mph.
7-day forecast for San Ygnacio
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 1 mph ENE | 0% |
| Tonight | 63°F | Mostly Clear | 0 to 5 mph ESE | 7% |
| Thursday | 84°F | Mostly Sunny | 2 mph NE | 7% |
| Thursday Night | 67°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 8 mph N | 22% |
| Friday | 79°F | Partly Sunny | 2 to 10 mph NNW | 14% |
| Friday Night | 61°F | Mostly Cloudy | 0 to 3 mph NNE | 4% |
| Saturday | 75°F | Mostly Cloudy then Slight Chance Rain Showers | 6 mph NNE | 21% |
| Saturday Night | 58°F | Chance Rain Showers | 2 to 8 mph N | 46% |
| Sunday | 71°F | Chance Rain Showers | 3 to 8 mph N | 30% |
| Sunday Night | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 2 mph N | 15% |
| Monday | 73°F | Mostly Sunny | 1 mph NNE | 6% |
| Monday Night | 55°F | Partly Cloudy | 0 mph | 2% |
| Tuesday | 77°F | Partly Sunny | 2 mph E | 6% |
| Tuesday Night | 59°F | Mostly Cloudy | 0 mph | 1% |
Forecast source: National Weather Service (api.weather.gov) for San Ygnacio (27.053, -99.424). Updated through the day.
Growing snapshot for San Ygnacio
Last spring frost
Jan 19
First fall frost
Dec 22
Growing season
341 days
Hardiness zone
9b
More local growing data for San Ygnacio: nearby ZIP 78067 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Falcon Lake Estates
Falcon Mesa
Las Palmas
Lopeño
Medina
Morales-Sanchez
New Falcon
Ramireno
Siesta Shores
Zapata
Climate data from the nearest NOAA station, Zapata 1 S, Tx (17.5 mi from San Ygnacio). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.