Smiths Grove, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smiths Grove, a city in Warren County, Kentucky.
This Afternoon
79°F
Mostly Sunny
Mostly sunny, with a high near 79. South wind around 12 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Smiths Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Mostly Sunny | 12 mph S | 2% |
| Tonight | 63°F | Showers And Thunderstorms | 13 mph S | 99% |
| Wednesday | 72°F | Showers And Thunderstorms | 6 to 13 mph SW | 99% |
| Wednesday Night | 48°F | Partly Cloudy | 5 mph SW | 2% |
| Thursday | 70°F | Mostly Sunny | 1 to 6 mph SW | 0% |
| Thursday Night | 44°F | Partly Cloudy | 1 mph W | 0% |
| Friday | 66°F | Mostly Sunny | 0 to 7 mph NW | 2% |
| Friday Night | 41°F | Partly Cloudy | 5 mph N | 2% |
| Saturday | 59°F | Mostly Sunny | 5 mph N | 1% |
| Saturday Night | 35°F | Mostly Cloudy | 2 mph NW | 1% |
| Sunday | 60°F | Mostly Sunny | 1 to 6 mph W | 5% |
| Sunday Night | 33°F | Mostly Clear then Slight Chance Rain Showers | 3 mph W | 15% |
| Monday | 62°F | Sunny | 1 to 6 mph W | 5% |
| Monday Night | 35°F | Mostly Clear | 3 mph SW | 1% |
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 Nov 3, 2026.