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
95°F
Sunny
Sunny, with a high near 95. West wind around 5 mph.
7-day forecast for Smiths Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 95°F | Sunny | 5 mph W | 5% |
| Tonight | 70°F | Mostly Clear | 3 mph NE | 6% |
| Saturday | 95°F | Sunny | 3 mph SW | 10% |
| Saturday Night | 71°F | Mostly Clear | 3 mph S | 7% |
| Sunday | 95°F | Mostly Sunny | 6 mph SW | 3% |
| Sunday Night | 71°F | Partly Cloudy | 3 mph S | 3% |
| Monday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 mph SW | 20% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 6 mph NE | 48% |
| Tuesday | 84°F | Chance Rain Showers then Chance Showers And Thunderstorms | 7 mph N | 52% |
| Tuesday Night | 63°F | Chance Showers And Thunderstorms | 3 to 7 mph N | 52% |
| Wednesday | 79°F | Chance Rain Showers | 3 to 7 mph N | 33% |
| Wednesday Night | 59°F | Slight Chance Rain Showers then Partly Cloudy | 2 to 6 mph N | 21% |
| Thursday | 77°F | Mostly Sunny | 2 to 6 mph N | 10% |
| Thursday Night | 59°F | Partly Cloudy | 5 mph N | 10% |
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 Sep 18, 2026.