Fairfield, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairfield, a city in Nelson County, Kentucky.
Today
86°F
Sunny
Sunny, with a high near 86. Northeast wind around 6 mph.
7-day forecast for Fairfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 6 mph NE | 0% |
| Tonight | 67°F | Mostly Clear | 1 to 5 mph N | 1% |
| Wednesday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 mph N | 25% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph S | 25% |
| Thursday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 22% |
| Thursday Night | 70°F | Slight Chance Showers And Thunderstorms | 6 mph S | 41% |
| Friday | 87°F | Chance Showers And Thunderstorms | 5 to 9 mph SW | 48% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 48% |
| Saturday | 87°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 40% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 5 mph S | 40% |
| Sunday | 88°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 20% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 mph SW | 20% |
| Monday | 90°F | Mostly Sunny | 5 to 9 mph SW | 11% |
| Monday Night | 72°F | Partly Cloudy then Slight Chance Rain Showers | 6 mph SW | 16% |
Forecast source: National Weather Service (api.weather.gov) for Fairfield (37.931, -85.386). Updated through the day.
Growing snapshot for Fairfield
Last spring frost
Apr 23
First fall frost
Oct 16
Growing season
176 days
Hardiness zone
6b
More local growing data for Fairfield: nearby ZIP 40020 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Taylorsville Lake, Ky (6.3 mi from Fairfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.