Union, KY Weather & Growing Conditions
Today
85°F
Sunny
Sunny, with a high near 85. Northeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 5 mph NE | 0% |
| Tonight | 65°F | Partly Cloudy | 3 mph N | 2% |
| Wednesday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 3 mph NW | 20% |
| Wednesday Night | 68°F | Partly Cloudy | 2 mph SW | 3% |
| Thursday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 6 mph SW | 25% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph S | 56% |
| Friday | 85°F | Showers And Thunderstorms Likely | 3 to 7 mph SW | 66% |
| Friday Night | 68°F | Showers And Thunderstorms Likely | 5 mph SW | 66% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 34% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SW | 32% |
| Sunday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 7 mph SW | 16% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 mph SW | 16% |
| Monday | 89°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 8 mph SW | 21% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 5 mph SW | 26% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Union, KY
Last spring frost
Apr 18
First fall frost
Oct 25
Growing season
188 days
Hardiness zone
6b
Explore more for Union, KY: full frost dates · planting calendar · Kentucky frost dates
Climate data from the nearest NOAA station, Cincinnati Northern Ky Ap, Ky (9.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.