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Fairfield, KY Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Fairfield, a city in Nelson County, Kentucky.

Overnight
71°F
Partly Cloudy
Partly cloudy, with a low around 71. East wind around 3 mph.

7-day forecast for Fairfield

WhenTempForecastWindPrecip
Overnight 71°F Partly Cloudy 3 mph E 5%
Saturday 92°F Sunny then Chance Showers And Thunderstorms 5 mph S 27%
Saturday Night 70°F Chance Showers And Thunderstorms then Mostly Clear 5 mph S 31%
Sunday 93°F Mostly Sunny 8 mph SW 3%
Sunday Night 67°F Partly Cloudy 3 to 7 mph NE 7%
Monday 85°F Partly Sunny then Chance Showers And Thunderstorms 7 mph NE 42%
Monday Night 60°F Chance Showers And Thunderstorms 7 to 10 mph NE 49%
Tuesday 76°F Chance Rain Showers 8 mph NE 36%
Tuesday Night 59°F Chance Showers And Thunderstorms 5 to 9 mph NE 39%
Wednesday 75°F Chance Rain Showers 6 mph N 39%
Wednesday Night 57°F Chance Showers And Thunderstorms then Partly Cloudy 6 mph N 27%
Thursday 74°F Mostly Sunny 3 to 7 mph N 8%
Thursday Night 56°F Partly Cloudy 3 to 7 mph N 8%
Friday 74°F Mostly Sunny 5 to 8 mph N 4%

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

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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 Sep 19, 2026.