St. Paul, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Paul, a community in San Patricio County, Texas.
Tonight
75°F
Mostly Clear
Mostly clear, with a low around 75. Heat index values as high as 90. East southeast wind 1 to 8 mph.
7-day forecast for St. Paul
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 75°F | Mostly Clear | 1 to 8 mph ESE | 7% |
| Sunday | 94°F | Sunny | 1 to 10 mph E | 14% |
| Sunday Night | 76°F | Partly Cloudy | 2 to 10 mph SE | 6% |
| Monday | 94°F | Slight Chance Showers And Thunderstorms | 2 to 10 mph E | 19% |
| Monday Night | 76°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 1 to 10 mph ESE | 19% |
| Tuesday | 96°F | Sunny then Slight Chance Showers And Thunderstorms | 2 to 12 mph ENE | 15% |
| Tuesday Night | 77°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 1 to 12 mph E | 15% |
| Wednesday | 96°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 13 mph ENE | 17% |
| Wednesday Night | 77°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 2 to 13 mph E | 17% |
| Thursday | 95°F | Slight Chance Showers And Thunderstorms | 6 to 15 mph ENE | 24% |
| Thursday Night | 77°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 14 mph E | 24% |
| Friday | 95°F | Mostly Sunny | 6 to 13 mph ENE | 14% |
| Friday Night | 76°F | Mostly Clear | 3 to 13 mph E | 14% |
| Saturday | 95°F | Sunny | 6 to 12 mph ENE | 11% |
Forecast source: National Weather Service (api.weather.gov) for St. Paul (28.091, -97.563). Updated through the day.
Growing snapshot for St. Paul
Last spring frost
Feb 1
First fall frost
Dec 17
Growing season
324 days
Hardiness zone
9b
More local growing data for St. Paul: nearby ZIP 78387 weather · frost dates · planting calendar · Texas frost dates
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San Patricio
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Tradewinds
Climate data from the nearest NOAA station, Sinton, Tx (2.7 mi from St. Paul). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.