Princeton, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Princeton, a city in Collin County, Texas.
Overnight
75°F
Clear
Clear. Low around 75, with temperatures rising to around 77 overnight. Southeast wind around 0 mph.
7-day forecast for Princeton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 75°F | Clear | 0 mph | 0% |
| Tuesday | 101°F | Sunny | 5 to 10 mph SSE | 1% |
| Tuesday Night | 77°F | Mostly Clear | 5 to 10 mph SSE | 1% |
| Wednesday | 101°F | Sunny | 5 to 10 mph SSW | 1% |
| Wednesday Night | 78°F | Mostly Clear | 10 mph SSE | 0% |
| Thursday | 100°F | Sunny | 10 mph SSW | 1% |
| Thursday Night | 78°F | Mostly Clear | 10 mph SSE | 2% |
| Friday | 99°F | Sunny | 5 to 10 mph S | 10% |
| Friday Night | 77°F | Mostly Clear | 5 to 10 mph SSE | 10% |
| Saturday | 97°F | Sunny | 5 to 10 mph S | 9% |
| Saturday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 9% |
| Sunday | 97°F | Sunny | 5 to 10 mph S | 5% |
| Sunday Night | 77°F | Mostly Clear | 10 mph SSE | 5% |
| Monday | 97°F | Sunny | 10 to 15 mph S | 4% |
Forecast source: National Weather Service (api.weather.gov) for Princeton (33.202, -96.518). Updated through the day.
Growing snapshot for Princeton
Last spring frost
Mar 18
First fall frost
Nov 11
Growing season
239 days
Hardiness zone
8b
More local growing data for Princeton: nearby ZIP 75407 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Mckinney Muni Ap, Tx (6.6 mi from Princeton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.