Princeton, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Princeton, a city in Collin County, Texas.
This Afternoon
71°F
Sunny
Sunny. High near 71, with temperatures falling to around 69 in the afternoon. West northwest wind 0 to 5 mph.
7-day forecast for Princeton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Sunny | 0 to 5 mph WNW | 0% |
| Tonight | 50°F | Patchy Fog | 0 to 5 mph SE | 0% |
| Thursday | 76°F | Sunny | 5 to 10 mph SSE | 1% |
| Thursday Night | 50°F | Partly Cloudy | 5 to 10 mph NNE | 12% |
| Friday | 68°F | Mostly Sunny | 10 to 15 mph N | 1% |
| Friday Night | 46°F | Mostly Cloudy | 5 to 10 mph NNE | 0% |
| Saturday | 66°F | Partly Sunny | 5 mph NNE | 1% |
| Saturday Night | 45°F | Mostly Cloudy | 5 mph NNE | 3% |
| Sunday | 65°F | Partly Sunny | 5 mph N | 1% |
| Sunday Night | 44°F | Partly Cloudy | 0 mph | 2% |
| Monday | 67°F | Sunny then Slight Chance Rain Showers | 0 mph | 15% |
| Monday Night | 45°F | Mostly Clear | 0 mph | 3% |
| Tuesday | 71°F | Sunny | 0 to 5 mph SSW | 3% |
| Tuesday Night | 48°F | Mostly Clear | 0 mph | 1% |
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 Nov 4, 2026.