St. Paul, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Paul, a town in Collin County, Texas.
Tonight
52°F
Mostly Clear
Mostly clear, with a low around 52. Northwest wind 5 to 10 mph.
7-day forecast for St. Paul
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear | 5 to 10 mph NW | 0% |
| Wednesday | 70°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 52°F | Patchy Fog | 0 to 5 mph SSE | 0% |
| Thursday | 75°F | Mostly Sunny | 5 to 10 mph SSW | 12% |
| Thursday Night | 52°F | Partly Cloudy | 5 to 10 mph NNW | 13% |
| Friday | 69°F | Sunny | 5 to 10 mph N | 0% |
| Friday Night | 48°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 66°F | Mostly Sunny | 5 mph N | 1% |
| Saturday Night | 46°F | Partly Cloudy | 0 to 5 mph N | 5% |
| Sunday | 68°F | Sunny | 5 mph NNW | 2% |
| Sunday Night | 46°F | Clear | 0 to 5 mph E | 1% |
| Monday | 71°F | Sunny | 0 to 5 mph S | 1% |
| Monday Night | 48°F | Mostly Clear | 5 mph S | 0% |
| Tuesday | 73°F | Sunny | 5 mph S | 2% |
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 Nov 4, 2026.