Smithfield, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smithfield, a city in Henry County, Kentucky.
Today
85°F
Sunny
Sunny, with a high near 85. Northeast wind around 6 mph.
7-day forecast for Smithfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 6 mph NE | 0% |
| Tonight | 66°F | Mostly Clear | 5 mph N | 1% |
| Wednesday | 87°F | Sunny then Slight Chance Showers And Thunderstorms | 3 mph N | 17% |
| Wednesday Night | 68°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 3 mph S | 17% |
| Thursday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 19% |
| Thursday Night | 69°F | Slight Chance Showers And Thunderstorms | 6 mph S | 47% |
| Friday | 86°F | Showers And Thunderstorms Likely | 6 to 9 mph SW | 63% |
| Friday Night | 68°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 7 mph SW | 63% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 35% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 mph SW | 32% |
| Sunday | 87°F | Mostly Sunny | 5 to 8 mph SW | 14% |
| Sunday Night | 70°F | Partly Cloudy | 7 mph SW | 14% |
| Monday | 89°F | Sunny | 6 to 9 mph SW | 13% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 7 mph SW | 22% |
Forecast source: National Weather Service (api.weather.gov) for Smithfield (38.387, -85.255). Updated through the day.
Growing snapshot for Smithfield
Last spring frost
Apr 12
First fall frost
Oct 25
Growing season
193 days
Hardiness zone
6b
More local growing data for Smithfield: nearby ZIP 40068 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Crestwood 4Ne, Ky (7.4 mi from Smithfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.