Smiths Grove, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smiths Grove, a city in Warren County, Kentucky.
Today
87°F
Sunny
Sunny, with a high near 87. Northeast wind around 5 mph.
7-day forecast for Smiths Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Sunny | 5 mph NE | 1% |
| Tonight | 68°F | Mostly Clear | 0 to 3 mph N | 2% |
| Wednesday | 88°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 3 mph NW | 21% |
| Wednesday Night | 70°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 2 mph S | 21% |
| Thursday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph SW | 16% |
| Thursday Night | 72°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph S | 34% |
| Friday | 90°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 38% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 1 to 5 mph S | 38% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 5 mph SW | 41% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 3 mph S | 39% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 5 mph SW | 30% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph S | 30% |
| Monday | 91°F | Mostly Sunny | 2 to 6 mph SW | 14% |
| Monday Night | 73°F | Partly Cloudy | 5 mph S | 14% |
Forecast source: National Weather Service (api.weather.gov) for Smiths Grove (37.050, -86.208). Updated through the day.
Growing snapshot for Smiths Grove
Last spring frost
Apr 9
First fall frost
Oct 30
Growing season
204 days
Hardiness zone
7a
More local growing data for Smiths Grove: nearby ZIP 42171 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mammoth Cave, Ky (6.7 mi from Smiths Grove). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.