St. Paul, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Paul, a town in Collin County, Texas.
Today
101°F
Sunny
Sunny, with a high near 101. Heat index values as high as 104. South wind 5 to 10 mph.
7-day forecast for St. Paul
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 101°F | Sunny | 5 to 10 mph S | 1% |
| Tonight | 77°F | Mostly Clear | 5 to 10 mph SSE | 1% |
| Wednesday | 100°F | Sunny | 5 to 10 mph SSW | 2% |
| Wednesday Night | 77°F | Mostly Clear | 5 to 10 mph S | 0% |
| Thursday | 99°F | Sunny | 10 mph S | 1% |
| Thursday Night | 77°F | Mostly Clear | 10 mph SSE | 1% |
| Friday | 98°F | Sunny | 5 to 10 mph S | 9% |
| Friday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 9% |
| Saturday | 96°F | Sunny | 5 to 10 mph S | 9% |
| Saturday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 9% |
| Sunday | 96°F | Sunny | 5 to 10 mph S | 4% |
| Sunday Night | 76°F | Mostly Clear | 10 mph SSE | 4% |
| Monday | 97°F | Sunny | 10 to 15 mph S | 5% |
| Monday Night | 77°F | Mostly Clear | 10 mph S | 5% |
Forecast source: National Weather Service (api.weather.gov) for St. Paul (33.047, -96.553). Updated through the day.
Growing snapshot for St. Paul
Last spring frost
Mar 10
First fall frost
Nov 19
Growing season
254 days
Hardiness zone
8b
More local growing data for St. Paul: nearby ZIP 75098 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Lavon Dam, Tx (3.2 mi from St. Paul). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.