Crystal City, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Crystal City, a city in Zavala County, Texas.
Overnight
54°F
Clear
Clear, with a low around 54. North northwest wind around 0 mph.
7-day forecast for Crystal City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Clear | 0 mph | 0% |
| Wednesday | 80°F | Sunny | 0 mph | 0% |
| Wednesday Night | 56°F | Clear | 0 to 5 mph ESE | 1% |
| Thursday | 82°F | Sunny | 0 mph | 0% |
| Thursday Night | 60°F | Partly Cloudy | 0 to 10 mph N | 0% |
| Friday | 77°F | Sunny | 0 to 5 mph N | 0% |
| Friday Night | 55°F | Partly Cloudy | 0 to 5 mph NNE | 1% |
| Saturday | 72°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph NE | 21% |
| Saturday Night | 53°F | Chance Rain Showers | 0 to 5 mph NNE | 31% |
| Sunday | 69°F | Slight Chance Rain Showers then Partly Sunny | 0 to 5 mph N | 18% |
| Sunday Night | 50°F | Partly Cloudy | 0 mph | 6% |
| Monday | 71°F | Mostly Sunny | 0 mph | 6% |
| Monday Night | 50°F | Partly Cloudy | 0 mph | 2% |
| Tuesday | 74°F | Mostly Sunny | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov) for Crystal City (28.691, -99.827). Updated through the day.
Growing snapshot for Crystal City
Last spring frost
Feb 10
First fall frost
Dec 10
Growing season
307 days
Hardiness zone
9a
More local growing data for Crystal City: nearby ZIP 78839 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Crystal City, Tx (6 mi from Crystal City). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.