Princeton, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Princeton, a city in Collin County, Texas.
Today
72°F
Mostly Sunny
Mostly sunny. High near 72, with temperatures falling to around 69 in the afternoon. Northwest wind 0 to 5 mph.
7-day forecast for Princeton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Tonight | 52°F | Patchy Fog | 0 mph | 0% |
| Thursday | 75°F | Sunny | 5 to 10 mph S | 0% |
| Thursday Night | 51°F | Partly Cloudy | 0 to 10 mph N | 4% |
| Friday | 69°F | Sunny | 10 to 15 mph N | 0% |
| Friday Night | 46°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 66°F | Mostly Sunny | 5 mph NNE | 2% |
| Saturday Night | 45°F | Slight Chance Rain Showers | 0 to 5 mph NNE | 15% |
| Sunday | 66°F | Mostly Sunny | 5 mph N | 3% |
| Sunday Night | 43°F | Mostly Clear | 0 mph | 1% |
| Monday | 69°F | Sunny | 0 to 5 mph S | 2% |
| Monday Night | 46°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 72°F | Sunny | 0 to 5 mph S | 2% |
| Tuesday Night | 49°F | Partly Cloudy | 0 to 5 mph SSE | 3% |
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
Nearby towns & communities
Allen
Anna
Blue Ridge
Celina
Fairview
Farmersville
Josephine
Lavon
Lowry Crossing
Lucas
McKinney
Melissa
Murphy
Nevada
New Hope
Parker
Plano
Prosper
Seis Lagos
St. Paul
Westminster
Weston
Wylie
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.