St. Hedwig, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Hedwig, a town in Bexar County, Texas.
Today
98°F
Mostly Sunny
Mostly sunny, with a high near 98. Heat index values as high as 103. Southeast wind 0 to 5 mph.
7-day forecast for St. Hedwig
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Mostly Sunny | 0 to 5 mph SE | 0% |
| Tonight | 73°F | Mostly Clear | 0 to 10 mph SSE | 0% |
| Sunday | 98°F | Mostly Sunny | 0 to 5 mph SSE | 0% |
| Sunday Night | 75°F | Partly Cloudy | 5 to 10 mph SSE | 4% |
| Monday | 98°F | Sunny | 0 to 10 mph SE | 9% |
| Monday Night | 75°F | Mostly Clear | 0 to 10 mph SE | 10% |
| Tuesday | 98°F | Sunny | 0 to 10 mph ENE | 11% |
| Tuesday Night | 74°F | Slight Chance Showers And Thunderstorms | 0 to 15 mph E | 17% |
| Wednesday | 98°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 15 mph ENE | 16% |
| Wednesday Night | 74°F | Partly Cloudy | 0 to 15 mph E | 9% |
| Thursday | 97°F | Mostly Sunny | 5 to 15 mph ENE | 8% |
| Thursday Night | 73°F | Partly Cloudy | 5 to 15 mph E | 5% |
| Friday | 97°F | Mostly Sunny | 5 to 10 mph ENE | 5% |
| Friday Night | 72°F | Partly Cloudy | 5 to 10 mph E | 5% |
Forecast source: National Weather Service (api.weather.gov) for St. Hedwig (29.420, -98.207). Updated through the day.
Growing snapshot for St. Hedwig
Last spring frost
Feb 21
First fall frost
Dec 5
Growing season
289 days
Hardiness zone
9a
More local growing data for St. Hedwig: nearby ZIP 78152 weather · frost dates · planting calendar · Texas frost dates
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Windcrest
Climate data from the nearest NOAA station, Randolph Afb, Tx (8.9 mi from St. Hedwig). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.