Trenton, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trenton, a city in Todd County, Kentucky.
Tonight
71°F
Mostly Clear
Mostly clear. Low around 71, with temperatures rising to around 73 overnight. East wind around 2 mph.
7-day forecast for Trenton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Mostly Clear | 2 mph E | 12% |
| Saturday | 97°F | Sunny | 1 to 6 mph WSW | 10% |
| Saturday Night | 72°F | Mostly Clear | 5 mph SSW | 7% |
| Sunday | 97°F | Mostly Sunny | 3 to 8 mph SW | 1% |
| Sunday Night | 69°F | Partly Cloudy | 5 mph E | 2% |
| Monday | 94°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph WSW | 18% |
| Monday Night | 66°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 8 mph NNE | 39% |
| Tuesday | 85°F | Chance Rain Showers then Chance Showers And Thunderstorms | 6 to 12 mph N | 35% |
| Tuesday Night | 61°F | Chance Showers And Thunderstorms | 5 to 12 mph N | 26% |
| Wednesday | 81°F | Chance Rain Showers | 5 to 9 mph N | 25% |
| Wednesday Night | 59°F | Partly Cloudy | 3 to 8 mph N | 13% |
| Thursday | 79°F | Mostly Sunny | 3 to 9 mph N | 8% |
| Thursday Night | 59°F | Partly Cloudy | 3 to 8 mph NNE | 8% |
| Friday | 79°F | Mostly Sunny | 5 to 10 mph NNE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Trenton (36.721, -87.262). Updated through the day.
Growing snapshot for Trenton
Last spring frost
Apr 3
First fall frost
Oct 29
Growing season
207 days
Hardiness zone
7a
More local growing data for Trenton: nearby ZIP 42286 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Elkton, Ky (8.5 mi from Trenton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.