Smithfield, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smithfield, a city in Henry County, Kentucky.
This Afternoon
89°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 89. North wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Smithfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 89°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph N | 28% |
| Tonight | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 8 mph NE | 30% |
| Saturday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph S | 27% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 6 mph S | 33% |
| Sunday | 90°F | Slight Chance Rain Showers then Mostly Sunny | 8 mph SW | 18% |
| Sunday Night | 67°F | Mostly Cloudy then Chance Rain Showers | 5 to 8 mph N | 26% |
| Monday | 82°F | Chance Rain Showers then Chance Showers And Thunderstorms | 9 mph NE | 45% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 50% |
| Tuesday | 75°F | Chance Rain Showers then Chance Showers And Thunderstorms | 9 mph NE | 47% |
| Tuesday Night | 60°F | Chance Showers And Thunderstorms | 6 to 10 mph NE | 47% |
| Wednesday | 72°F | Chance Rain Showers | 8 mph N | 28% |
| Wednesday Night | 58°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 8 mph N | 16% |
| Thursday | 71°F | Partly Sunny | 7 mph N | 8% |
| Thursday Night | 58°F | Mostly Cloudy | 7 mph N | 8% |
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 Sep 18, 2026.