Princeton, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Princeton, a city in Caldwell County, Kentucky.
Overnight
59°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. Low around 59, with temperatures rising to around 62 overnight. South wind around 7 mph. Chance of precipitation is 30%.
7-day forecast for Princeton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Chance Rain Showers | 7 mph S | 25% |
| Wednesday | 68°F | Slight Chance Rain Showers then Partly Sunny | 6 to 9 mph WSW | 23% |
| Wednesday Night | 46°F | Partly Cloudy | 5 mph WSW | 0% |
| Thursday | 68°F | Sunny | 2 to 7 mph SW | 0% |
| Thursday Night | 45°F | Mostly Clear | 2 mph WNW | 0% |
| Friday | 63°F | Mostly Sunny | 2 to 8 mph NNW | 0% |
| Friday Night | 38°F | Partly Cloudy | 6 mph N | 0% |
| Saturday | 57°F | Mostly Sunny | 6 mph N | 0% |
| Saturday Night | 34°F | Partly Cloudy | 2 mph NNW | 0% |
| Sunday | 58°F | Sunny | 1 to 6 mph NNW | 0% |
| Sunday Night | 34°F | Mostly Clear | 2 mph NW | 0% |
| Monday | 62°F | Sunny | 0 to 5 mph W | 0% |
| Monday Night | 37°F | Clear | 2 mph SW | 1% |
| Tuesday | 67°F | Sunny | 5 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Princeton (37.106, -87.885). Updated through the day.
Growing snapshot for Princeton
Last spring frost
Apr 11
First fall frost
Oct 24
Growing season
196 days
Hardiness zone
7a
More local growing data for Princeton: nearby ZIP 42445 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Princeton 1 Se, Ky (0.6 mi from Princeton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.