Princeton, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Princeton, a city in Caldwell County, Kentucky.
This Afternoon
98°F
Sunny
Sunny. High near 98, with temperatures falling to around 93 in the afternoon. West wind around 7 mph.
7-day forecast for Princeton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Sunny | 7 mph W | 8% |
| Tonight | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph E | 17% |
| Saturday | 96°F | Sunny | 1 to 6 mph WSW | 5% |
| Saturday Night | 72°F | Mostly Clear | 3 mph SSW | 3% |
| Sunday | 96°F | Sunny | 3 to 7 mph WSW | 0% |
| Sunday Night | 70°F | Partly Cloudy | 3 mph NNE | 2% |
| Monday | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 6 mph N | 30% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 3 to 7 mph NNE | 42% |
| Tuesday | 81°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 9 mph N | 28% |
| Tuesday Night | 60°F | Partly Cloudy | 3 to 9 mph N | 13% |
| Wednesday | 77°F | Mostly Sunny | 7 mph N | 13% |
| Wednesday Night | 58°F | Partly Cloudy | 6 mph N | 8% |
| Thursday | 77°F | Mostly Sunny | 3 to 7 mph N | 5% |
| Thursday Night | 58°F | Partly Cloudy | 6 mph NNE | 5% |
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 Sep 19, 2026.