Balcones Heights, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Balcones Heights, a city in Bexar County, Texas.
Today
96°F
Mostly Sunny
Mostly sunny, with a high near 96. Heat index values as high as 101. South southeast wind 0 to 5 mph.
7-day forecast for Balcones Heights
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 96°F | Mostly Sunny | 0 to 5 mph SSE | 0% |
| Tonight | 75°F | Mostly Clear | 5 to 10 mph SSE | 0% |
| Sunday | 96°F | Mostly Sunny | 0 to 5 mph SSE | 0% |
| Sunday Night | 76°F | Partly Cloudy | 5 mph SE | 6% |
| Monday | 97°F | Sunny | 0 to 5 mph SE | 8% |
| Monday Night | 76°F | Mostly Clear | 0 to 5 mph SE | 10% |
| Tuesday | 96°F | Sunny | 0 to 10 mph ENE | 12% |
| Tuesday Night | 76°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph E | 19% |
| Wednesday | 96°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 10 mph ENE | 19% |
| Wednesday Night | 76°F | Partly Cloudy | 5 to 10 mph E | 12% |
| Thursday | 96°F | Mostly Sunny | 5 to 10 mph ENE | 10% |
| Thursday Night | 75°F | Partly Cloudy | 5 to 10 mph E | 5% |
| Friday | 95°F | Mostly Sunny | 5 to 10 mph ENE | 5% |
| Friday Night | 74°F | Partly Cloudy | 5 to 10 mph E | 4% |
Forecast source: National Weather Service (api.weather.gov) for Balcones Heights (29.490, -98.549). Updated through the day.
Growing snapshot for Balcones Heights
Last spring frost
Feb 25
First fall frost
Nov 28
Growing season
277 days
Hardiness zone
9a
More local growing data for Balcones Heights: nearby ZIP 78201 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, San Antonio Incarnate Word, Tx (3.4 mi from Balcones Heights). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.