Franklin, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Franklin, a city in Simpson County, Kentucky.
Today
86°F
Sunny
Sunny, with a high near 86. Northeast wind around 6 mph.
7-day forecast for Franklin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 6 mph NE | 2% |
| Tonight | 69°F | Mostly Clear | 0 to 6 mph N | 1% |
| Wednesday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 mph N | 21% |
| Wednesday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph S | 21% |
| Thursday | 91°F | Sunny then Slight Chance Showers And Thunderstorms | 6 mph SW | 15% |
| Thursday Night | 73°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 mph S | 28% |
| Friday | 90°F | Chance Showers And Thunderstorms | 7 mph SW | 35% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 5 mph S | 35% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 6 mph SW | 43% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms | 3 mph S | 43% |
| Sunday | 90°F | Chance Showers And Thunderstorms | 5 mph SW | 33% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph S | 33% |
| Monday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 mph SW | 15% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph S | 15% |
Forecast source: National Weather Service (api.weather.gov) for Franklin (36.718, -86.558). Updated through the day.
Growing snapshot for Franklin
Last spring frost
Apr 5
First fall frost
Nov 1
Growing season
210 days
Hardiness zone
7a
More local growing data for Franklin: nearby ZIP 42134 weather · frost dates · planting calendar · Kentucky frost dates
Climate data from the nearest NOAA station, Portland Sewage Plt, Tn (9.8 mi from Franklin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.