Princeton, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Princeton, a city in Collin County, Texas.
Overnight
74°F
Mostly Clear
Mostly clear. Low around 74, with temperatures rising to around 76 overnight. South wind around 5 mph.
7-day forecast for Princeton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 74°F | Mostly Clear | 5 mph S | 0% |
| Saturday | 98°F | Sunny | 5 to 15 mph S | 0% |
| Saturday Night | 75°F | Mostly Clear | 5 to 15 mph S | 0% |
| Sunday | 98°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 10 mph S | 17% |
| Sunday Night | 74°F | Chance Showers And Thunderstorms | 5 mph SSE | 47% |
| Monday | 95°F | Chance Showers And Thunderstorms | 5 mph WSW | 47% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph NNE | 17% |
| Tuesday | 91°F | Mostly Sunny | 10 mph NNE | 12% |
| Tuesday Night | 68°F | Partly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 91°F | Mostly Sunny | 10 mph ENE | 10% |
| Wednesday Night | 68°F | Partly Cloudy | 5 to 10 mph ENE | 2% |
| Thursday | 91°F | Mostly Sunny | 5 to 10 mph E | 4% |
| Thursday Night | 69°F | Partly Cloudy | 5 mph E | 1% |
| Friday | 91°F | Mostly Sunny | 5 to 10 mph E | 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
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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 Sep 19, 2026.