Castle Hills, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Castle Hills, a city in Bexar County, Texas.
Overnight
55°F
Clear
Clear, with a low around 55. North wind around 5 mph.
7-day forecast for Castle Hills
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Clear | 5 mph N | 0% |
| Wednesday | 75°F | Sunny | 0 to 5 mph NNE | 0% |
| Wednesday Night | 55°F | Clear | 0 to 5 mph E | 0% |
| Thursday | 78°F | Sunny | 0 to 5 mph S | 0% |
| Thursday Night | 59°F | Partly Cloudy | 0 to 20 mph N | 1% |
| Friday | 73°F | Sunny | 5 to 15 mph N | 0% |
| Friday Night | 55°F | Partly Cloudy | 5 to 15 mph NNE | 0% |
| Saturday | 68°F | Partly Sunny then Slight Chance Rain Showers | 10 to 15 mph NNE | 18% |
| Saturday Night | 53°F | Chance Rain Showers | 5 to 15 mph NNE | 29% |
| Sunday | 66°F | Slight Chance Rain Showers then Partly Sunny | 5 to 10 mph NNE | 15% |
| Sunday Night | 49°F | Partly Cloudy | 0 to 5 mph N | 5% |
| Monday | 68°F | Sunny | 0 to 5 mph ENE | 5% |
| Monday Night | 50°F | Partly Cloudy | 0 to 5 mph ESE | 3% |
| Tuesday | 70°F | Mostly Sunny | 0 to 5 mph ESE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Castle Hills (29.525, -98.519). Updated through the day.
Growing snapshot for Castle Hills
Last spring frost
Feb 26
First fall frost
Nov 28
Growing season
277 days
Hardiness zone
9a
More local growing data for Castle Hills: nearby ZIP 78213 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Alamo Heights
Balcones Heights
China Grove
Converse
Cross Mountain
Elmendorf
Grey Forest
Helotes
Hill Country Village
Hollywood Park
Kirby
Lackland AFB
Leon Valley
Live Oak
Macdona
Olmos Park
Randolph AFB
San Antonio
Sandy Oaks
Schertz
Selma
Shavano Park
Somerset
St. Hedwig
Terrell Hills
Timberwood Park
Universal City
Von Ormy
Windcrest
Climate data from the nearest NOAA station, San Antonio Intl Ap, Tx (3 mi from Castle Hills). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.