Spring Mill, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Spring Mill, a city in Jefferson County, Kentucky.
Today
94°F
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 94. Heat index values as high as 103. Southwest wind around 6 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Spring Mill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Sunny then Slight Chance Showers And Thunderstorms | 6 mph SW | 23% |
| Tonight | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 6 mph SE | 28% |
| Sunday | 94°F | Mostly Sunny | 6 to 9 mph SW | 2% |
| Sunday Night | 68°F | Partly Cloudy | 8 mph N | 12% |
| Monday | 84°F | Partly Sunny then Chance Showers And Thunderstorms | 9 mph NE | 46% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 12 mph NE | 46% |
| Tuesday | 76°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 9 mph NE | 35% |
| Tuesday Night | 60°F | Chance Showers And Thunderstorms | 6 to 10 mph N | 37% |
| Wednesday | 75°F | Chance Rain Showers | 5 to 8 mph N | 37% |
| Wednesday Night | 59°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 9 mph N | 18% |
| Thursday | 75°F | Mostly Sunny | 5 to 8 mph N | 8% |
| Thursday Night | 58°F | Partly Cloudy | 5 to 9 mph N | 8% |
| Friday | 75°F | Mostly Sunny | 6 to 10 mph NE | 5% |
| Friday Night | 56°F | Partly Cloudy | 6 to 10 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Spring Mill (38.144, -85.632). Updated through the day.
Growing snapshot for Spring Mill
Last spring frost
Apr 6
First fall frost
Nov 1
Growing season
209 days
Hardiness zone
7a
More local growing data for Spring Mill: nearby ZIP 40228 weather · frost dates · planting calendar · Kentucky frost dates
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Climate data from the nearest NOAA station, Louisville Wfo, Ky (1.8 mi from Spring Mill). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.